Amlodipine, Valsartan, and Hydrochlorothiazide (amlodipine besylate 5 mg valsartan 160 mg hydrochlorothiazide 12.5 mg) Dailymed

Generic: amlodipine, valsartan, and hydrochlorothiazide

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amlodipine besylate 5 mgvalsartan 160 mghydrochlorothiazide 25 mg - tv 7037 round yellow

amlodipine besylate 10 mgvalsartan 160 mghydrochlorothiazide 12.5 mg - tv 7810 round yellow

amlodipine besylate 10 mgvalsartan 160 mghydrochlorothiazide 25 mg - tv 7038 round brown

amlodipine besylate 5 mgvalsartan 160 mghydrochlorothiazide 12.5 mg - tv 7807 round white

Boxed Warning

Warning: Fetal Toxicity

When pregnancy is detected, discontinue amlodipine, valsartan, and hydrochlorothiazide tablets as soon as possible. (5.1)
Drugs that act directly on the renin-angiotensin system can cause injury and death to the developing fetus. (5.1)

WARNING: FETAL TOXICITY See full prescribing information for complete boxed warning.

When pregnancy is detected, discontinue amlodipine, valsartan, and hydrochlorothiazide tablets as soon as possible. (5.1)

Drugs that act directly on the renin-angiotensin system can cause injury and death to the developing fetus. (5.1)

FDA Adverse Reactions

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Warning: Fetal Toxicity

When pregnancy is detected, discontinue amlodipine, valsartan, and hydrochlorothiazide tablets as soon as possible. (5.1)

Drugs that act directly on the renin-angiotensin system can cause injury and death to the developing fetus. (5.1)

WARNING: FETAL TOXICITY

See full prescribing information for complete boxed warning.

When pregnancy is detected, discontinue amlodipine, valsartan, and hydrochlorothiazide tablets as soon as possible. (5.1)

Drugs that act directly on the renin-angiotensin system can cause injury and death to the developing fetus. (5.1)

1 Indications And Usage

Amlodipine, valsartan, and hydrochlorothiazide tablets are indicated for the treatment of hypertension, to lower blood pressure. Lowering blood pressure reduces the risk of fatal and nonfatal cardiovascular events, primarily strokes and myocardial infarctions. These benefits have been seen in controlled trials of antihypertensive drugs from a wide variety of pharmacologic classes, including amlodipine, hydrochlorothiazide, and the ARB class to which valsartan principally belongs. There are no controlled trials demonstrating risk reduction with amlodipine, valsartan, and hydrochlorothiazide tablets.

Control of high blood pressure should be part of comprehensive cardiovascular risk management, including, as appropriate, lipid control, diabetes management, antithrombotic therapy, smoking cessation, exercise, and limited sodium intake. Many patients will require more than 1 drug to achieve blood pressure goals. For specific advice on goals and management, see published guidelines, such as those of the National High Blood Pressure Education Program’s Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure (JNC).

Numerous antihypertensive drugs, from a variety of pharmacologic classes and with different mechanisms of action, have been shown in randomized controlled trials to reduce cardiovascular morbidity and mortality, and it can be concluded that it is blood pressure reduction, and not some other pharmacologic property of the drugs, that is largely responsible for those benefits. The largest and most consistent cardiovascular outcome benefit has been a reduction in the risk of stroke, but reductions in myocardial infarction and cardiovascular mortality also have been seen regularly.

Elevated systolic or diastolic pressure causes increased cardiovascular risk, and the absolute risk increase per mmHg is greater at higher blood pressures, so that even modest reductions of severe hypertension can provide substantial benefit. Relative risk reduction from blood pressure reduction is similar across populations with varying absolute risk, so the absolute benefit is greater in patients who are at higher risk independent of their hypertension (e.g., patients with diabetes or hyperlipidemia), and such patients would be expected to benefit from more aggressive treatment to a lower blood pressure goal.

Some antihypertensive drugs have smaller blood pressure effects (as monotherapy) in black patients, and many antihypertensive drugs have additional approved indications and effects (e.g., on angina, heart failure, or diabetic kidney disease). These considerations may guide selection of therapy.

This fixed combination drug is not indicated for the initial therapy of hypertension [see Dosage and Administration (2)].

Amlodipine, valsartan, and hydrochlorothiazide tablets are a combination tablet of amlodipine, a dihydropyridine calcium channel blocker (DHP CCB), valsartan, an angiotensin II receptor blocker (ARB), and hydrochlorothiazide, a thiazide diuretic. Amlodipine, valsartan, and hydrochlorothiazide tablets are indicated for the treatment of hypertension to lower blood pressure. Lowering blood pressure reduces the risk of fatal and nonfatal cardiovascular events, primarily strokes, and myocardial infarctions. (1)

Not indicated for initial therapy

2 Dosage And Administration

Dose once-daily. Titrate up to a maximum dose of 10/320/25 mg

Amlodipine, valsartan, and hydrochlorothiazide tablets may be used as add-on/switch therapy for patients not adequately controlled on any two of the following antihypertensive classes: calcium channel blockers, angiotensin receptor blockers, and diuretics.

Amlodipine, valsartan, and hydrochlorothiazide tablets may be substituted for their individually titrated components (2)

2.1 General Considerations

Dose once-daily. The dosage may be increased after 2 weeks of therapy. The full blood pressure lowering effect was achieved 2 weeks after being on the maximal dose of amlodipine, valsartan, and hydrochlorothiazide tablets. The maximum recommended dose of amlodipine, valsartan, and hydrochlorothiazide tablets is 10/320/25 mg.

2.2 Add-on / Switch Therapy

Amlodipine, valsartan, and hydrochlorothiazide tablets may be used for patients not adequately controlled on any 2 of the following antihypertensive classes: calcium channel blockers, angiotensin receptor blockers, and diuretics.

A patient who experiences dose-limiting adverse reactions to an individual component while on any dual combination of the components of amlodipine, valsartan, and hydrochlorothiazide tablets may be switched to amlodipine, valsartan, and hydrochlorothiazide tablets containing a lower dose of that component to achieve similar blood pressure reductions.

2.3 Replacement Therapy

Amlodipine, valsartan, and hydrochlorothiazide tablets may be substituted for the individually titrated components.

2.4 Use With Other Antihypertensive Drugs

Amlodipine, valsartan, and hydrochlorothiazide tablets may be administered with other antihypertensive agents.

3 Dosage Forms And Strengths

Amlodipine, valsartan, and hydrochlorothiazide tablets are available as:

5/160/12.5 mg - white to off-white, film coated, standard convex round tablet, debossed with "TV" on one side and "7807" on the other side of the tablet and contains 6.9 mg amlodipine besylate equivalent to 5 mg of amlodipine free-base, 160 mg valsartan, and 12.5 mg hydrochlorothiazide.

5/160/25 mg - very dark-yellow to yellow, film coated, standard convex round tablet, debossed with "TV" on one side and with "7037" on the other side of the tablet and contains 6.9 mg amlodipine besylate equivalent to 5 mg of amlodipine free-base, 160 mg valsartan, and 25 mg hydrochlorothiazide.

10/160/12.5 mg - light-yellow to yellowish, film coated, standard convex round tablet, debossed with "TV" on one side and with "7810" on the other side of the tablet and contains 13.9 mg amlodipine besylate equivalent to 10 mg of amlodipine free-base, 160 mg valsartan, and 12.5 mg hydrochlorothiazide.

10/160/25 mg - light-brown to brown, film coated, standard convex round tablet, debossed with "TV" on one side and with "7038" on the other side of the tablet and contains 13.9 mg amlodipine besylate equivalent to 10 mg of amlodipine free-base, 160 mg valsartan, and 25 mg hydrochlorothiazide.

10/320/25 mg - light-brown to brown, film coated, standard convex round tablet, debossed with "TV" on one side and with "7809" on the other side of the tablet and contains 13.9 mg amlodipine besylate equivalent to 10 mg of amlodipine free-base, 320 mg valsartan, and 25 mg hydrochlorothiazide.

Tablets: (amlodipine/valsartan/hydrochlorothiazide mg) 5/160/12.5, 5/160/25, 10/160/12.5, 10/160/25, 10/320/25 (3)

4 Contraindications

Do not use in patients with anuria, hypersensitivity to other sulfonamide-derived drugs, or hypersensitivity to any component of this product.

Do not coadminister aliskiren with amlodipine, valsartan, and hydrochlorothiazide tablets in patients with diabetes [see Drug Interactions (7)].

Anuria (4)

Hypersensitivity to sulfonamide-derived drugs (4)

Known hypersensitivity to any component (4)

Do not coadminister aliskiren with amlodipine, valsartan, and hydrochlorothiazide tablets in patients with diabetes (4)

5 Warnings And Precautions

Hypotension: Correct volume depletion prior to initiation (5.2)

Increased angina and/or myocardial infarction (5.3)

Monitor renal function and potassium in susceptible patients (5.4, 5.5)

Exacerbation or activation of systemic lupus erythematosus (5.7)

Observe for signs of fluid or electrolyte imbalance (5.9)

Acute angle-closure glaucoma (5.10)

5.1 Fetal Toxicity

Pregnancy Category D

Use of drugs that act on the renin-angiotensin system during the second and third trimesters of pregnancy reduces fetal renal function and increases fetal and neonatal morbidity and death. Resulting oligohydramnios can be associated with fetal lung hypoplasia and skeletal deformations. Potential neonatal adverse effects include skull hypoplasia, anuria, hypotension, renal failure, and death. When pregnancy is detected, discontinue amlodipine, valsartan, and hydrochlorothiazide tablets as soon as possible [see Use in Specific Populations (8.1)].

5.2 Hypotension in Volume- or Salt-Depleted Patients

Excessive hypotension, including orthostatic hypotension, was seen in 1.7% of patients treated with the maximum dose of amlodipine, valsartan, and hydrochlorothiazide tablets (10/320/25 mg) compared to 1.8% of valsartan/HCTZ (320/25 mg) patients, 0.4% of amlodipine/valsartan (10/320 mg) patients, and 0.2% of HCTZ/amlodipine (25/10 mg) patients in a controlled trial in patients with moderate to severe uncomplicated hypertension. In patients with an activated renin-angiotensin system, such as volume- or salt-depleted patients receiving high doses of diuretics, symptomatic hypotension may occur in patients receiving angiotensin receptor blockers. Correct this condition prior to administration of amlodipine, valsartan, and hydrochlorothiazide tablets.

Amlodipine, valsartan, and hydrochlorothiazide tablets have not been studied in patients with heart failure, recent myocardial infarction, or in patients undergoing surgery or dialysis. Patients with heart failure or post-myocardial infarction patients given valsartan commonly have some reduction in blood pressure, but discontinuation of therapy because of continuing symptomatic hypotension usually is not necessary when dosing instructions are followed. In controlled trials in heart failure patients, the incidence of hypotension in valsartan-treated patients was 5.5% compared to 1.8% in placebo-treated patients. In the Valsartan in Acute Myocardial Infarction Trial (VALIANT), hypotension in post-myocardial infarction patients led to permanent discontinuation of therapy in 1.4% of valsartan-treated patients and 0.8% of captopril-treated patients.

Since the vasodilation induced by amlodipine is gradual in onset, acute hypotension has rarely been reported after oral administration. Do not initiate treatment with amlodipine, valsartan, and hydrochlorothiazide tablets in patients with aortic or mitral stenosis or obstructive hypertrophic cardiomyopathy.

If excessive hypotension occurs with amlodipine, valsartan, and hydrochlorothiazide tablets, the patient should be placed in a supine position and, if necessary, given an intravenous infusion of normal saline. A transient hypotensive response is not a contraindication to further treatment, which usually can be continued without difficulty once the blood pressure has stabilized.

5.3 Increased Angina and/or Myocardial Infarction

Worsening angina and acute myocardial infarction can develop after starting or increasing the dose of amlodipine, particularly in patients with severe obstructive coronary artery disease.

5.4 Impaired Renal Function

Changes in renal function including acute renal failure can be caused by drugs that inhibit the renin-angiotensin system and by diuretics. Patients whose renal function may depend in part on the activity of the renin-angiotensin system (e.g., patients with renal artery stenosis, chronic kidney disease, severe congestive heart failure, or volume depletion) may be at particular risk of developing acute renal failure on amlodipine, valsartan, and hydrochlorothiazide tablets. Monitor renal function periodically in these patients. Consider withholding or discontinuing therapy in patients who develop a clinically significant decrease in renal function on amlodipine, valsartan, and hydrochlorothiazide tablets [see Drug Interactions (7)].

5.5 Potassium Abnormalities

In the controlled trial of amlodipine, valsartan, and hydrochlorothiazide tablets in moderate to severe hypertensive patients, the incidence of hypokalemia (serum potassium < 3.5 mEq/L) at any time post-baseline with the maximum dose of amlodipine, valsartan, and hydrochlorothiazide tablets (10/320/25 mg) was 10% compared to 25% with HCTZ/amlodipine (25/10 mg), 7% with valsartan/HCTZ (320/25 mg), and 3% with amlodipine/valsartan (10/320 mg). One patient (0.2%) discontinued therapy due to an adverse event of hypokalemia in each of the amlodipine, valsartan, and hydrochlorothiazide tablets and HCTZ/amlodipine groups. The incidence of hyperkalemia (serum potassium > 5.7 mEq/L) was 0.4% with amlodipine, valsartan, and hydrochlorothiazide tablets compared to 0.2% to 0.7% with the dual therapies.

Some patients with heart failure have developed increases in potassium on valsartan. These effects are usually minor and transient, and they are more likely to occur in patients with preexisting renal impairment. Dosage reduction and/or discontinuation of the diuretic and/or valsartan may be required.

Hydrochlorothiazide can cause hypokalemia and hyponatremia. Hypomagnesemia can result in hypokalemia which appears difficult to treat despite potassium repletion. Drugs that inhibit the renin-angiotensin system can cause hyperkalemia. Monitor serum electrolytes periodically.

If hypokalemia is accompanied by clinical signs (e.g., muscular weakness, paresis, or ECG alterations), amlodipine, valsartan, and hydrochlorothiazide tablets should be discontinued. Correction of hypokalemia and any coexisting hypomagnesemia is recommended prior to the initiation of thiazides.

5.6 Hypersensitivity Reaction

Hypersensitivity reactions to hydrochlorothiazide may occur in patients with or without a history of allergy or bronchial asthma, but are more likely in patients with such a history.

5.7 Systemic Lupus Erythematosus

Thiazide diuretics have been reported to cause exacerbation or activation of systemic lupus erythematosus.

5.8 Lithium Interaction

Increases in serum lithium concentrations and lithium toxicity have been reported with concomitant use of valsartan or thiazide diuretics. Monitor lithium levels in patients receiving amlodipine, valsartan, and hydrochlorothiazide tablets and lithium [see Drug Interactions ( 7 )].

5.9 Metabolic Imbalances

Hydrochlorothiazide may alter glucose tolerance and raise serum levels of cholesterol and triglycerides.

Hydrochlorothiazide may raise the serum uric acid level due to reduced clearance of uric acid and may cause or exacerbate hyperuricemia and precipitate gout in susceptible patients.

Hydrochlorothiazide decreases urinary calcium excretion and may cause elevations of serum calcium. Monitor calcium levels in patients with hypercalcemia receiving amlodipine, valsartan, and hydrochlorothiazide tablets.

5.10 Acute Myopia and Secondary Angle-Closure Glaucoma

Hydrochlorothiazide, a sulfonamide, can cause an idiosyncratic reaction, resulting in acute transient myopia and acute angle-closure glaucoma. Symptoms include acute onset of decreased visual acuity or ocular pain and typically occur within hours to weeks of drug initiation. Untreated acute angle-closure glaucoma can lead to permanent vision loss. The primary treatment is to discontinue hydrochlorothiazide as rapidly as possible. Prompt medical or surgical treatments may need to be considered if the intraocular pressure remains uncontrolled. Risk factors for developing acute angle-closure glaucoma may include a history of sulfonamide or penicillin allergy.

6 Adverse Reactions

Most common adverse events (≥ 2% incidence) are dizziness, peripheral edema, headache, dyspepsia, fatigue, muscle spasms, back pain, nausea and nasopharyngitis. (6.1)

To report SUSPECTED ADVERSE REACTIONS, contact TEVA USA, PHARMACOVIGILANCE at 1-866-832-8537 or drug.safety@tevapharm.com; or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

6.1 Clinical Trials Experience

Because clinical studies are conducted under widely varying conditions, adverse reaction rates observed in the clinical studies of a drug cannot be directly compared to rates in the clinical studies of another drug and may not reflect the rates observed in clinical practice.

In the controlled trial of amlodipine, valsartan, and hydrochlorothiazide tablets, where only the maximum dose (10/320/25 mg) was evaluated, safety data were obtained in 582 patients with hypertension. Adverse reactions have generally been mild and transient in nature and have only infrequently required discontinuation of therapy.

The overall frequency of adverse reactions was similar between men and women, younger (< 65 years) and older (≥ 65 years) patients, and black and white patients. In the active controlled clinical trial, discontinuation because of adverse events occurred in 4.0% of patients treated with amlodipine, valsartan, and hydrochlorothiazide tablets 10/320/25 mg compared to 2.9% of patients treated with valsartan/HCTZ 320/25 mg, 1.6% of patients treated with amlodipine/valsartan 10/320 mg, and 3.4% of patients treated with HCTZ/amlodipine 25/10 mg. The most common reasons for discontinuation of therapy with amlodipine, valsartan, and hydrochlorothiazide tablets were dizziness (1.0%) and hypotension (0.7%).

The most frequent adverse events that occurred in the active controlled clinical trial in at least 2% of patients treated with amlodipine, valsartan, and hydrochlorothiazide tablets are presented in the following table.

Preferred Term

Aml/Val/HCTZ

10/320/25 mg

N = 582

n (%)

Val/HCTZ

320/25 mg

N = 559

n (%)

Aml/Val

10/320 mg

N = 566

n (%)

HCTZ/Aml

25/10 mg

N = 561

n (%)

Dizziness

48 (8.2)

40 (7.2)

14 (2.5)

23 (4.1)

Edema

38 (6.5)

8 (1.4)

65 (11.5)

63 (11.2)

Headache

30 (5.2)

31 (5.5)

30 (5.3)

40 (7.1)

Dyspepsia

13 (2.2)

5 (0.9)

6 (1.1)

2 (0.4)

Fatigue

13 (2.2)

15 (2.7)

12 (2.1)

8 (1.4)

Muscle spasms

13 (2.2)

7 (1.3)

7 (1.2)

5 (0.9)

Back pain

12 (2.1)

13 (2.3)

5 (0.9)

12 (2.1)

Nausea

12 (2.1)

7 (1.3)

10 (1.8)

12 (2.1)

Nasopharyngitis

12 (2.1)

13 (2.3)

13 (2.3)

12 (2.1)

Orthostatic events (orthostatic hypotension and postural dizziness) were seen in 0.5% of patients. Other adverse reactions that occurred in clinical trials with amlodipine, valsartan, and hydrochlorothiazide tablets (> 0.2%) are uled below. It cannot be determined whether these events were causally related to amlodipine, valsartan, and hydrochlorothiazide tablets.

Cardiac Disorders: tachycardia

Ear and Labyrinth Disorders: vertigo, tinnitus

Eye Disorders: vision blurred

Gastrointestinal Disorders: diarrhea, abdominal pain upper, vomiting, abdominal pain, toothache, dry mouth, gastritis, hemorrhoids

General Disorders and Administration Site Conditions: asthenia, noncardiac chest pain, chills, malaise

Infections and Infestations: upper respiratory tract infection, bronchitis, influenza, pharyngitis, tooth abscess, gastroenteritis viral, respiratory tract infection, rhinitis, urinary tract infection

Injury, Poisoning and Procedural Complications: back injury, contusion, joint sprain, procedural pain

Investigations: blood uric acid increased, blood creatine phosphokinase increased, weight decreased

Metabolism and Nutrition Disorders: hypokalemia, diabetes mellitus, hyperlipidemia, hyponatremia

Musculoskeletal and Connective Tissue Disorders: pain in extremity, arthralgia, musculoskeletal pain, muscular weakness, musculoskeletal weakness, musculoskeletal stiffness, joint swelling, neck pain, osteoarthritis, tendonitis

Nervous System Disorders: paresthesia, somnolence, syncope, carpal tunnel syndrome, disturbance in attention, dizziness postural, dysgeusia, head discomfort, lethargy, sinus headache, tremor

Psychiatric Disorders: anxiety, depression, insomnia

Renal and Urinary Disorders: pollakiuria

Reproductive System and Breast Disorders: erectile dysfunction

Respiratory, Thoracic and Mediastinal Disorders: dyspnea, nasal congestion, cough, pharyngolaryngeal pain

Skin and Subcutaneous Tissue Disorders: pruritus, hyperhidrosis, night sweats, rash

Vascular Disorders: hypotension

Isolated cases of the following clinically notable adverse reactions were also observed in clinical trials: anorexia, constipation, dehydration, dysuria, increased appetite, viral infection.

Amlodipine

Amlodipine has been evaluated for safety in more than 11,000 patients in U.S. and foreign clinical trials. Other adverse reactions not uled above that have been reported in < 1% but > 0.1% of patients in controlled clinical trials or under conditions of open trials or marketing experience where a causal relationship is uncertain were:

Cardiovascular: arrhythmia (including ventricular tachycardia and atrial fibrillation), bradycardia, chest pain, peripheral ischemia, syncope, postural hypotension, vasculitis

Central and Peripheral Nervous System: neuropathy peripheral, tremor

Gastrointestinal: anorexia, dysphagia, pancreatitis, gingival hyperplasia

General: allergic reaction, hot flushes, malaise, rigors, weight gain

Musculoskeletal System: arthrosis, muscle cramps

Psychiatric: sexual dysfunction (male and female), nervousness, abnormal dreams, depersonalization

Skin and Appendages: angioedema, erythema multiforme, rash erythematous, rash maculopapular

Special Senses: abnormal vision, conjunctivitis, diplopia, eye pain, tinnitus

Urinary System: micturition frequency, micturition disorder, nocturia

Autonomic Nervous System: sweating increased

Metabolic and Nutritional: hyperglycemia, thirst

Hemopoietic: leukopenia, purpura, thrombocytopenia

Other adverse reactions reported with amlodipine at a frequency of ≤ 0.1% of patients include: cardiac failure, pulse irregularity, extrasystoles, skin discoloration, urticaria, skin dryness, alopecia, dermatitis, muscle weakness, twitching, ataxia, hypertonia, migraine, cold and clammy skin, apathy, agitation, amnesia, gastritis, increased appetite, loose stools, rhinitis, dysuria, polyuria, parosmia, taste perversion, abnormal visual accommodation, and xerophthalmia. Other reactions occurred sporadically and cannot be distinguished from medications or concurrent disease states such as myocardial infarction and angina.

Adverse reactions reported for amlodipine for indications other than hypertension may be found in its full prescribing information.

Valsartan

Valsartan has been evaluated for safety in more than 4,000 hypertensive patients in clinical trials. In trials in which valsartan was compared to an ACE inhibitor with or without placebo, the incidence of dry cough was significantly greater in the ACE inhibitor group (7.9%) than in the groups who received valsartan (2.6%) or placebo (1.5%). In a 129 patient trial limited to patients who had dry cough when they had previously received ACE inhibitors, the incidences of cough in patients who received valsartan, HCTZ, or lisinopril were 20%, 19%, and 69% respectively (p < 0.001).

Other adverse reactions, not uled above, occurring in > 0.2% of patients in controlled clinical trials with valsartan are:

Digestive: flatulence

Respiratory: sinusitis, pharyngitis

Urogenital: impotence

Adverse reactions reported for valsartan for indications other than hypertension may be found in the prescribing information for valsartan.

Hydrochlorothiazide

Other adverse reactions not uled above that have been reported with hydrochlorothiazide, without regard to causality, are uled below:

Body as a Whole: weakness

Digestive: pancreatitis, jaundice (intrahepatic cholestatic jaundice), sialadenitis, cramping, gastric irritation

Hematologic: aplastic anemia, agranulocytosis, hemolytic anemia

Hypersensitivity: photosensitivity, urticaria, necrotizing angiitis (vasculitis and cutaneous vasculitis), fever, respiratory distress including pneumonitis and pulmonary edema, anaphylactic reactions

Metabolic: glycosuria, hyperuricemia

Nervous System/Psychiatric: restlessness

Renal: renal failure, renal dysfunction, interstitial nephritis

Skin: erythema multiforme including Stevens-Johnson syndrome, exfoliative dermatitis including toxic epidermal necrolysis

Special Senses: transient blurred vision, xanthopsia.

Clinical Laboratory Test Findings

Clinical laboratory test findings for amlodipine, valsartan, and hydrochlorothiazide tablets were obtained in a controlled trial of amlodipine, valsartan, and hydrochlorothiazide tablets administered at the maximal dose of 10/320/25 mg compared to maximal doses of dual therapies, i.e., valsartan/HCTZ 320/25 mg, amlodipine/valsartan 10/320 mg, and HCTZ/amlodipine 25/10 mg. Findings for the components of amlodipine, valsartan, and hydrochlorothiazide tablets were obtained from other trials.

Creatinine: In hypertensive patients, greater than 50% increases in creatinine occurred in 2.1% of amlodipine, valsartan, and hydrochlorothiazide tablet patients compared to 2.4% of valsartan/HCTZ patients, 0.7% of amlodipine/valsartan patients, and 1.8% of HCTZ/amlodipine patients.

In heart failure patients, greater than 50% increases in creatinine were observed in 3.9% of valsartan-treated patients compared to 0.9% of placebo-treated patients. In post-myocardial infarction patients, doubling of serum creatinine was observed in 4.2% of valsartan-treated patients and 3.4% of captopril-treated patients.

Liver Function Tests: Occasional elevations (greater than 150%) of liver chemistries occurred in amlodipine, valsartan, and hydrochlorothiazide tablet-treated patients.

Blood Urea Nitrogen (BUN): In hypertensive patients, greater than 50% increases in BUN were observed in 30% of amlodipine, valsartan, and hydrochlorothiazide tablet-treated patients compared to 29% of valsartan/HCTZ patients, 15.8% of amlodipine/valsartan patients, and 18.5% of HCTZ/amlodipine patients. The majority of BUN values remained within normal limits.

In heart failure patients, greater than 50% increases in BUN were observed in 17% of valsartan-treated patients compared to 6% of placebo-treated patients.

Serum Electrolytes (Potassium): In hypertensive patients, greater than 20% decreases in serum potassium were observed in 6.5% of amlodipine, valsartan, and hydrochlorothiazide tablet-treated patients compared to 3.3% of valsartan/HCTZ patients, 0.4% of amlodipine/valsartan patients, and 19.3% of HCTZ/amlodipine patients. Greater than 20% increases in potassium were observed in 3.5% of amlodipine, valsartan, and hydrochlorothiazide tablet-treated patients compared to 2.4% of valsartan/HCTZ patients, 6.2% of amlodipine/valsartan patients, and 2.2% of HCTZ/amlodipine patients.

In heart failure patients, greater than 20% increases in serum potassium were observed in 10% of valsartan-treated patients compared to 5.1% of placebo-treated patients [see Warnings and Precautions (5.5)].

Neutropenia: Neutropenia (< 1500/L) was observed in 1.9% of patients treated with valsartan and 0.8% of patients treated with placebo.

6.2 Postmarketing Experience

The following additional adverse reactions have been reported in postmarketing experience. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure.

Amlodipine

With amlodipine, gynecomastia has been reported infrequently and a causal relationship is uncertain. Jaundice and hepatic enzyme elevations (mostly consistent with cholestasis or hepatitis), in some cases severe enough to require hospitalization, have been reported in association with use of amlodipine.

Valsartan

The following additional adverse reactions have been reported in postmarketing experience with valsartan or valsartan/hydrochlorothiazide:

Blood and Lymphatic: Decrease in hemoglobin, decrease in hematocrit, neutropenia

Hypersensitivity: There are rare reports of angioedema. Some of these patients previously experienced angioedema with other drugs including ACE inhibitors. Amlodipine, valsartan, and hydrochlorothiazide tablets should not be re-administered to patients who have had angioedema.

Digestive: Elevated liver enzymes and very rare reports of hepatitis

Renal: Impaired renal function, renal failure

Clinical Laboratory Tests: Hyperkalemia

Dermatologic: Alopecia, bullous dermatitis

Vascular: Vasculitis

Nervous System: Syncope

Rare cases of rhabdomyolysis have been reported in patients receiving angiotensin II receptor blockers.

Hydrochlorothiazide

The following additional adverse reactions have been reported in postmarketing experience with hydrochlorothiazide:

Acute renal failure, renal disorder, aplastic anemia, erythema multiforme, pyrexia, muscle spasm, asthenia, acute angle-closure glaucoma, bone marrow failure, worsening of diabetes control, hypokalemia, blood lipids increased, hyponatremia, hypomagnesemia, hypercalcemia, hypochloremic alkalosis, impotence, visual impairment.

Pathological changes in the parathyroid gland of patients with hypercalcemia and hypophosphatemia have been observed in a few patients on prolonged thiazide therapy. If hypercalcemia occurs, further diagnostic evaluation is necessary.

7 Drug Interactions

No drug interaction studies have been conducted with amlodipine, valsartan, and hydrochlorothiazide tablets and other drugs, although studies have been conducted with the individual components. A pharmacokinetic drug-drug interaction study has been conducted to address the potential for pharmacokinetic interaction between the triple combination, amlodipine, valsartan, and hydrochlorothiazide tablets, and the corresponding 3 double combinations. No clinically relevant interaction was observed.

Amlodipine

Impact of other Drugs on Amlodipine

CYP3A Inhibitors

Coadministration with CYP3A inhibitors (moderate and strong) results in increased systemic exposure to amlodipine and may require dose reduction. Monitor for symptoms of hypotension and edema when amlodipine is coadministered with CYP3A inhibitors to determine the need for dose adjustment [see Clinical Pharmacology ( 12.3)].

CYP3A Inducers

No information is available on the quantitative effects of CYP3A inducers on amlodipine. Blood pressure should be closely monitored when amlodipine is coadministered with CYP3A inducers.

Sildenafil

Monitor for hypotension when sildenafil is coadministered with amlodipine [see Clinical Pharmacology ( 12.2)].

Impact of Amlodipine on other Drugs

Simvastatin

Coadministration of simvastatin with amlodipine increases the systemic exposure of simvastatin. Limit the dose of simvastatin in patients on amlodipine to 20 mg daily [see Clinical Pharmacology ( 12.3)].

Immunosuppressants

Amlodipine may increase the systemic exposure of cyclosporine or tacrolimus when coadministered. Frequent monitoring of trough blood levels of cyclosporine and tacrolimus is recommended and adjust the dose when appropriate [see Clinical Pharmacology ( 12.3)].

Valsartan

No clinically significant pharmacokinetic interactions were observed when valsartan was coadministered with amlodipine, atenolol, cimetidine, digoxin, furosemide, glyburide, hydrochlorothiazide, or indomethacin. The valsartan-atenolol combination was more antihypertensive than either component, but it did not lower the heart rate more than atenolol alone.

In vitro metabolism studies have indicated that CYP450 mediated drug interaction between valsartan and coadministered drugs are unlikely because of the low extent of metabolism [see Pharmacokinetics - Valsartan, (12.3)].

Coadministration of valsartan and warfarin did not change the pharmacokinetics of valsartan or the time-course of the anticoagulant properties of warfarin.

Potassium: Concomitant use of valsartan with other agents that block the renin-angiotensin system, potassium-sparing diuretics (e.g., spironolactone, triamterene, amiloride), potassium supplements, salt substitutes containing potassium or other drugs that may increase potassium levels (e.g., heparin) may lead to increases in serum potassium and in heart failure patients to increases in serum creatinine. If co-medication is considered necessary, monitoring of serum potassium is advisable.

Non-Steroidal Anti-Inflammatory Agents including Selective Cyclooxygenase-2 Inhibitors (COX-2 Inhibitors): In patients who are elderly, volume-depleted (including those on diuretic therapy), or with compromised renal function, coadministration of NSAIDs, including selective COX-2 inhibitors, with angiotensin II receptor antagonists, including valsartan, may result in deterioration of renal function, including possible acute renal failure. These effects are usually reversible. Monitor renal function periodically in patients receiving valsartan and NSAID therapy.

The antihypertensive effect of angiotensin II receptor antagonists, including valsartan, may be attenuated by NSAIDs including selective COX-2 inhibitors.

Dual Blockade of the Renin-Angiotensin System (RAS): Dual blockade of the RAS with angiotensin receptor blockers, ACE inhibitors, or aliskiren is associated with increased risks of hypotension, hyperkalemia, and changes in renal function (including acute renal failure) compared to monotherapy. Most patients receiving the combination of two RAS inhibitors do not obtain any additional benefit compared to monotherapy. In general, avoid combined use of RAS inhibitors. Closely monitor blood pressure, renal function, and electrolytes in patients on amlodipine, valsartan, and hydrochlorothiazide tablets and other agents that affect the RAS.

Do not coadminister aliskiren with amlodipine, valsartan, and hydrochlorothiazide tablets in patients with diabetes. Avoid use of aliskiren with amlodipine, valsartan, and hydrochlorothiazide tablets in patients with renal impairment (GFR < 60 mL/min).

Valsartan – Hydrochlorothiazide

Lithium: Increases in serum lithium concentrations and lithium toxicity have been reported during concomitant administration of lithium with angiotensin II receptor antagonists or thiazides. Monitor lithium levels in patients taking amlodipine, valsartan, and hydrochlorothiazide tablets.

Hydrochlorothiazide

When administered concurrently the following drugs may interact with thiazide diuretics:

Antidiabetic drugs (oral agents and insulin): Dosage adjustment of the antidiabetic drug may be required.

Non-steroidal anti-inflammatory drugs (NSAIDs and COX-2 selective inhibitors): When amlodipine, valsartan, and hydrochlorothiazide tablets and non-steroidal anti-inflammatory agents are used concomitantly, the patient should be observed closely to determine if the desired effect of diuretic is obtained.

Carbamazepine: May lead to symptomatic hyponatremia.

Ion exchange resins: Staggering the dosage of hydrochlorothiazide and ion exchange resins (e.g., cholestyramine, colestipol) such that hydrochlorothiazide is administered at least 4 hours before or 4 to 6 hours after the administration of resins would potentially minimize the interaction [see Clinical Pharmacology (12.3)].

Cyclosporine: Concomitant treatment with cyclosporine may increase the risk of hyperuricemia and gout-type complications.

If simvastatin is coadministered with amlodipine, do not exceed doses greater than 20 mg daily of simvastatin (7)

Antidiabetic drugs: Dosage adjustment of antidiabetic may be required (7)

Cholestyramine and colestipol: Reduced absorption of thiazides (12.3)

Lithium: Increased risk of lithium toxicity. Monitor serum lithium concentrations during concurrent use. (7)

NSAID use may lead to increased risk of renal impairment and loss of anti-hypertensive effect (7)

Dual inhibition of the renin-angiotensin system: Increased risk of renal impairment, hypotension, and hyperkalemia (7)

8 Use In Specific Populations

Nursing Mothers: Avoid use while nursing – discontinue either nursing or drug (8.3) Geriatric Patients: Not recommended for initial therapy (8.5) Hepatic Impairment: Not recommended for initial therapy (8.7)

8.1 Pregnancy

Use of drugs that act on the renin-angiotensin system during the second and third trimesters of pregnancy reduces fetal renal function and increases fetal and neonatal morbidity and death. Resulting oligohydramnios can be associated with fetal lung hypoplasia and skeletal deformations. Potential neonatal adverse effects include skull hypoplasia, anuria, hypotension, renal failure, and death. When pregnancy is detected, discontinue amlodipine, valsartan, and hydrochlorothiazide tablets as soon as possible. These adverse outcomes are usually associated with use of these drugs in the second and third trimesters of pregnancy. Most epidemiologic studies examining fetal abnormalities after exposure to antihypertensive use in the first trimester have not distinguished drugs affecting the renin-angiotensin system from other antihypertensive agents. Appropriate management of maternal hypertension during pregnancy is important to optimize outcomes for both mother and fetus.

In the unusual case that there is no appropriate alternative to therapy with drugs affecting the renin-angiotensin system for a particular patient, apprise the mother of the potential risk to the fetus. Perform serial ultrasound examinations to assess the intra-amniotic environment. If oligohydramnios is observed, discontinue amlodipine, valsartan, and hydrochlorothiazide tablets, unless they are considered lifesaving for the mother. Fetal testing may be appropriate, based on the week of pregnancy. Patients and physicians should be aware, however, that oligohydramnios may not appear until after the fetus has sustained irreversible injury. Closely observe infants with histories of in utero exposure to amlodipine, valsartan, and hydrochlorothiazide for hypotension, oliguria, and hyperkalemia [see Use in Specific Populations (8.4)].

Hydrochlorothiazide

Thiazides can cross the placenta, and concentrations reached in the umbilical vein approach those in the maternal plasma. Hydrochlorothiazide, like other diuretics, can cause placental hypoperfusion. It accumulates in the amniotic fluid, with required concentrations up to 19 times higher than in umbilical vein plasma. Use of thiazides during pregnancy is associated with a risk of fetal or neonatal jaundice of thrombocytopenia. Since they do not prevent or alter the course of EPH (Edema, Proteinuria, Hypertension) gestosis (pre-eclampsia), these drugs should not be used to treat hypertension in pregnant women. The use of hydrochlorothiazide for other indications (e.g., heart disease) in pregnancy should be avoided.

8.3 Nursing Mothers

It is not known whether amlodipine and valsartan are excreted in human milk, but thiazides are excreted in human milk and valsartan is excreted in rat milk. Because of the potential for adverse effects on the nursing infant, a decision should be made whether to discontinue nursing or discontinue the drug, taking into account the importance of the drug to the mother.

8.4 Pediatric Use

The safety and effectiveness of amlodipine, valsartan, and hydrochlorothiazide tablets in pediatric patients have not been established.

Neonates with a history of in utero exposure to amlodipine, valsartan, and hydrochlorothiazide tablets:

If oliguria or hypotension occurs, direct attention toward support of blood pressure and renal perfusion. Exchange transfusions or dialysis may be required as a means of reversing hypotension and/or substituting for disordered renal function.

8.5 Geriatric Use

Amlodipine: Clinical studies of amlodipine besylate tablets did not include sufficient numbers of subjects aged 65 and over to determine whether they respond differently from younger subjects. Other reported clinical experience has not identified differences in responses between the elderly and younger patients. In general, dose selection for an elderly patient should be cautious, usually starting at the low end of the dosing range, reflecting the greater frequency of decreased hepatic, renal or cardiac function, and of concomitant disease or other drug therapy. Elderly patients have decreased clearance of amlodipine with a resulting increase of AUC of approximately 40% to 60% [see Clinical Pharmacology ( 12.3)]. The recommended starting dose of amlodipine 2.5 mg is not an available strength with amlodipine, valsartan, and hydrochlorothiazide tablets [see Clinical Studies ( 14)].

8.6 Renal Impairment

Safety and effectiveness of amlodipine, valsartan, and hydrochlorothiazide tablets in patients with severe renal impairment (CrCl < 30 mL/min) have not been established. No dose adjustment is required in patients with mild (CrCl 60 to 90 mL/min) or moderate (CrCl 30 to 60 mL/min) renal impairment.

8.7 Hepatic Impairment

Amlodipine

Exposure to amlodipine is increased in patients with hepatic insufficiency. The recommended initial dose of amlodipine in patients with hepatic impairment is 2.5 mg, which is not an available strength with amlodipine, valsartan, and hydrochlorothiazide tablets [see Clinical Pharmacology (12.3)].

Valsartan

No dose adjustment is necessary for patients with mild-to-moderate disease. No dosing recommendations can be provided for patients with severe liver disease.

Hydrochlorothiazide

Minor alterations of fluid and electrolyte balance may precipitate hepatic coma in patients with impaired hepatic function or progressive liver disease.

10 Overdosage

Limited data are available related to overdosage in humans. The most likely manifestations of overdosage would be hypotension and tachycardia; bradycardia could occur from parasympathetic (vagal) stimulation. If symptomatic hypotension should occur, supportive treatment should be instituted.

Amlodipine

Single oral doses of amlodipine maleate equivalent to 40 mg/kg and 100 mg/kg amlodipine in mice and rats, respectively, caused deaths. Single oral doses equivalent to 4 or more mg/kg amlodipine in dogs (11 or more times the maximum recommended human dose on a mg/m² basis) caused a marked peripheral vasodilation and hypotension.

Overdosage might be expected to cause excessive peripheral vasodilation with marked hypotension. In humans, experience with intentional overdosage of amlodipine is limited. Marked and potentially prolonged systemic hypotension up to and including shock with fatal outcome have been reported.

If massive overdose should occur, initiate active cardiac and respiratory monitoring. Frequent blood pressure measurements are essential. Should hypotension occur, initiate cardiovascular support including elevation of the extremities and the judicious administration of fluids. If hypotension remains unresponsive to these conservative measures, consider administration of vasopressors (such as phenylephrine) with attention to circulating volume and urine output. As amlodipine is highly protein bound, hemodialysis is not likely to be of benefit. Administration of activated charcoal to healthy volunteers immediately or up to two hours after ingestion of amlodipine has been shown to significantly decrease amlodipine absorption.

Valsartan

Depressed level of consciousness, circulatory collapse, and shock have been reported.

Valsartan is not removed from the plasma by hemodialysis.

Valsartan was without grossly observable adverse effects at single oral doses up to 2000 mg/kg in rats and up to 1000 mg/kg in marmosets, except for salivation and diarrhea in the rat and vomiting in the marmoset at the highest dose (60 and 31 times, respectively, the maximum recommended human dose (MRHD) on a mg/m²basis). (Calculations assume an oral dose of 320 mg/day and a 60 kg patient.)

Hydrochlorothiazide

The degree to which hydrochlorothiazide is removed by hemodialysis has not been established. The most common signs and symptoms observed in patients are those caused by electrolyte depletion (hypokalemia, hypochloremia, hyponatremia) and dehydration resulting from excessive diuresis. If digitalis has also been administered, hypokalemia may accentuate cardiac arrhythmias.

The oral LD₅₀ of hydrochlorothiazide is greater than 10 g/kg in both mice and rats, 2000 and 4000 times, respectively, the MRHD on a mg/m² basis. (Calculations assume an oral dose of 25 mg/day and a 60 kg patient.)

Valsartan and Hydrochlorothiazide

In rats and marmosets, single oral doses of valsartan up to 1524 and 762 mg/kg in combination with hydrochlorothiazide at doses up to 476 and 238 mg/kg, respectively, were very well tolerated without any treatment-related effects. These no adverse effect doses in rats and marmosets, respectively, represent 46.5 and 23 times the MRHD of valsartan and 188 and 113 times the MRHD of hydrochlorothiazide on a mg/m² basis. (Calculations assume an oral dose of 320 mg/day valsartan in combination with 25 mg/day hydrochlorothiazide and a 60 kg patient.)

11 Description

Amlodipine, valsartan, and hydrochlorothiazide tablets are a fixed combination of amlodipine, valsartan, and hydrochlorothiazide.

Amlodipine, valsartan, and hydrochlorothiazide tablets contain the besylate salt of amlodipine, a dihydropyridine calcium channel blocker (CCB). Amlodipine besylate, USP is a white or almost white powder, slightly soluble in water and sparingly soluble in ethanol. Amlodipine besylate’s chemical name is 2-[(2-aminoethoxy)methyl]-]-4-(2-chlorophenyl)-6-methyl-1,4-dihydropyridine-3,5-dicarboxilic acid -3-ethyl ester 5- methyl ester, compound with benzonesulfonic acid. It has the following chemical structure:

C₂₀H₂₅ClN₂O₅•C₆H₆O₃S M.W. 567.05

Valsartan, USP is a nonpeptide, orally active, and specific angiotensin II antagonist acting on the AT₁ receptor subtype. Valsartan is a white to almost white amorphous powder, hygroscopic in nature, freely soluble in methanol and practically insoluble in water. Valsartan’s chemical name is N-(1-oxopentyl)-N-[[2′-(1H-tetrazol-5-yl) [1,1′-biphenyl]-4-yl]methyl]-L-valine. It has the following chemical structure:

C₂₄H₂₉N₅O₃ M.W. 435.52

Hydrochlorothiazide, USP is a white or almost white crystalline powder. It is soluble in acetone and in dilute solutions of alkali hydroxides. Hydrochlorothiazide is chemically described as 6-chloro-3,4-dihydro-2H-1,2,4-benzothiadiazine-7-sulfonamide 1,1-dioxide.

Hydrochlorothiazide is a thiazide diuretic. It has the following chemical structure:

C₇H₈ClN₃O₄S₂ M.W. 297.74

Amlodipine, valsartan, and hydrochlorothiazide film-coated tablets are formulated in 5 strengths for oral administration with a combination of amlodipine besylate, valsartan and hydrochlorothiazide, providing for the following available combinations: 5/160/12.5 mg, 5/160/25 mg, 10/160/12.5 mg, 10/160/25 mg and 10/320/25 mg amlodipine besylate/valsartan/hydrochlorothiazide. The inactive ingredients for all strengths of the tablets include: calcium phosphate dibasic, colloidal silicon dioxide, crospovidone, magnesium stearate, microcrystalline cellulose, polyethylene glycol, polyvinyl alcohol, sodium starch glycolate, starch, talc, and titanium dioxide. Additionally, the 5/160/25 mg and 10/160/12.5 mg strengths contain iron oxide yellow; the 10/160/25 mg and the 10/320/25 mg strengths contain D&C yellow #10 aluminum lake, FD&C blue #2/indigo carmine aluminum lake, FD&C red #40/allura red AC aluminum lake, and FD&C yellow #6/sunset yellow FCF aluminum lake.

12 Clinical Pharmacology

12.1 Mechanism of Action

The active ingredients of amlodipine, valsartan, and hydrochlorothiazide tablets target 3 separate mechanisms involved in blood pressure regulation. Specifically, amlodipine blocks the contractile effects of calcium on cardiac and vascular smooth muscle cells; valsartan blocks the vasoconstriction and sodium retaining effects of angiotensin II on cardiac, vascular smooth muscle, adrenal and renal cells; and hydrochlorothiazide directly promotes the excretion of sodium and chloride in the kidney leading to reductions in intravascular volume. A more detailed description of the mechanism of action of each individual component follows.

Amlodipine

Amlodipine is a dihydropyridine calcium channel blocker that inhibits the transmembrane influx of calcium ions into vascular smooth muscle and cardiac muscle. Experimental data suggest that amlodipine binds to both dihydropyridine and nondihydropyridine binding sites. The contractile processes of cardiac muscle and vascular smooth muscle are dependent upon the movement of extracellular calcium ions into these cells through specific ion channels. Amlodipine inhibits calcium ion influx across cell membranes selectively, with a greater effect on vascular smooth muscle cells than on cardiac muscle cells. Negative inotropic effects can be detected in vitro but such effects have not been seen in intact animals at therapeutic doses. Serum calcium concentration is not affected by amlodipine. Within the physiologic pH range, amlodipine is an ionized compound (pKa = 8.6), and its kinetic interaction with the calcium channel receptor is characterized by a gradual rate of association and dissociation with the receptor binding site, resulting in a gradual onset of effect.

Amlodipine is a peripheral arterial vasodilator that acts directly on vascular smooth muscle to cause a reduction in peripheral vascular resistance and reduction in blood pressure.

Valsartan

Angiotensin II is formed from angiotensin I in a reaction catalyzed by angiotensin-converting enzyme (ACE, kininase II). Angiotensin II is the principal pressor agent of the renin-angiotensin system, with effects that include vasoconstriction, stimulation of synthesis and release of aldosterone, cardiac stimulation, and renal reabsorption of sodium. Valsartan blocks the vasoconstrictor and aldosterone-secreting effects of angiotensin II by selectively blocking the binding of angiotensin II to the AT₁ receptor in many tissues, such as vascular smooth muscle and the adrenal gland. Its action is therefore independent of the pathways for angiotensin II synthesis.

There is also an AT₂ receptor found in many tissues, but AT₂ is not known to be associated with cardiovascular homeostasis. Valsartan has much greater affinity (about 20,000 fold) for the AT₁ receptor than for the AT₂ receptor. The increased plasma levels of angiotensin following AT₁ receptor blockade with valsartan may stimulate the unblocked AT₂ receptor. The primary metabolite of valsartan is essentially inactive with an affinity for the AT₁ receptor about one-200th that of valsartan itself.

Blockade of the renin-angiotensin system with ACE inhibitors, which inhibit the biosynthesis of angiotensin II from angiotensin I, is widely used in the treatment of hypertension. ACE inhibitors also inhibit the degradation of bradykinin, a reaction also catalyzed by ACE. Because valsartan does not inhibit ACE (kininase II), it does not affect the response to bradykinin. Whether this difference has clinical relevance is not yet known. Valsartan does not bind to or block other hormone receptors or ion channels known to be important in cardiovascular regulation.

Blockade of the angiotensin II receptor inhibits the negative regulatory feedback of angiotensin II on renin secretion, but the resulting increased plasma renin activity and angiotensin II circulating levels do not overcome the effect of valsartan on blood pressure.

Hydrochlorothiazide

Hydrochlorothiazide is a thiazide diuretic. Thiazides affect the renal tubular mechanisms of electrolyte reabsorption, directly increasing excretion of sodium and chloride in approximately equivalent amounts. Indirectly, the diuretic action of hydrochlorothiazide reduces plasma volume, with consequent increases in plasma renin activity, increases in aldosterone secretion, increases in urinary potassium loss, and decreases in serum potassium. The renin-aldosterone link is mediated by angiotensin II, so coadministration of an angiotensin II receptor antagonist tends to reverse the potassium loss associated with these diuretics.

The mechanism of the antihypertensive effect of thiazides is unknown.

12.2 Pharmacodynamics

Amlodipine, valsartan, and hydrochlorothiazide tablets have been shown to be effective in lowering blood pressure. The 3 components of amlodipine, valsartan, and hydrochlorothiazide tablets (amlodipine, valsartan, hydrochlorothiazide) lower the blood pressure through complementary mechanisms, each working at a separate site and blocking different effector pathways. The pharmacodynamics of each individual component are described below.

Amlodipine, valsartan, and hydrochlorothiazide tablets have not been studied in indications other than hypertension.

Amlodipine

Following administration of therapeutic doses to patients with hypertension, amlodipine produces vasodilation resulting in a reduction of supine and standing blood pressures. These decreases in blood pressure are not accompanied by a significant change in heart rate or plasma catecholamine levels with chronic dosing. Although the acute intravenous administration of amlodipine decreases arterial blood pressure and increases heart rate in hemodynamic studies of patients with chronic stable angina, chronic oral administration of amlodipine in clinical trials did not lead to clinically significant changes in heart rate or blood pressures in normotensive patients with angina.

With chronic, once-daily administration, antihypertensive effectiveness is maintained for at least 24 hours. Plasma concentrations correlate with effect in both young and elderly patients. The magnitude of reduction in blood pressure with amlodipine is also correlated with the height of pretreatment elevation; thus, individuals with moderate hypertension (diastolic pressure 105 to 114 mmHg) had about a 50% greater response than patients with mild hypertension (diastolic pressure 90 to 104 mmHg). Normotensive subjects experienced no clinically significant change in blood pressure (+1/-2 mmHg).

In hypertensive patients with normal renal function, therapeutic doses of amlodipine resulted in a decrease in renal vascular resistance and an increase in glomerular filtration rate and effective renal plasma flow without change in filtration fraction or proteinuria.

As with other calcium channel blockers, hemodynamic measurements of cardiac function at rest and during exercise (or pacing) in patients with normal ventricular function treated with amlodipine have generally demonstrated a small increase in cardiac index without significant influence on dP/dt or on left ventricular end diastolic pressure or volume. In hemodynamic studies, amlodipine has not been associated with a negative inotropic effect when administered in the therapeutic dose range to intact animals and man, even when coadministered with beta-blockers to man. Similar findings, however, have been observed in normal or well-compensated patients with heart failure with agents possessing significant negative inotropic effects.

Amlodipine does not change sinoatrial nodal function or atrioventricular conduction in intact animals or man. In patients with chronic stable angina, intravenous administration of 10 mg did not significantly alter A-H and H-V conduction and sinus node recovery time after pacing. Similar results were obtained in patients receiving amlodipine and concomitant beta-blockers. In clinical studies in which amlodipine was administered in combination with beta-blockers to patients with either hypertension or angina, no adverse effects of electrocardiographic (ECG) parameters were observed. In clinical trials with angina patients alone, amlodipine therapy did not alter ECG intervals or produce higher degrees of AV blocks.

Amlodipine has indications other than hypertension which are described in its full prescribing information.

Drug Interactions

Sildenafil

When amlodipine and sildenafil were used in combination, each agent independently exerted its own blood pressure lowering effect [see Drug Interactions ( 7)].

Valsartan

Valsartan inhibits the pressor effect of angiotensin II infusions. An oral dose of 80 mg inhibits the pressor effect by about 80% at peak with approximately 30% inhibition persisting for 24 hours. No information on the effect of larger doses is available.

Removal of the negative feedback of angiotensin II causes a 2 to 3 fold rise in plasma renin and consequent rise in angiotensin II plasma concentration in hypertensive patients. Minimal decreases in plasma aldosterone were observed after administration of valsartan; very little effect on serum potassium was observed.

Administration of valsartan to patients with essential hypertension results in a significant reduction of sitting, supine, and standing systolic blood pressure, usually with little or no orthostatic change.

Valsartan has indications other than hypertension which are described in its full prescribing information.

Hydrochlorothiazide

After oral administration of hydrochlorothiazide, diuresis begins within 2 hours, peaks in about 4 hours and lasts about 6 to 12 hours.

12.3 Pharmacokinetics

Amlodipine, Valsartan, and Hydrochlorothiazide Tablets

Following oral administration of amlodipine, valsartan, and hydrochlorothiazide tablets in normal healthy adults, peak plasma concentrations of amlodipine, valsartan and HCTZ are reached in about 6 hours, 3 hours, and 2 hours, respectively. The rate and extent of absorption of amlodipine, valsartan and HCTZ from amlodipine, valsartan, and hydrochlorothiazide tablets are the same as when administered as individual dosage forms.

The bioavailability of amlodipine, valsartan, and HCTZ were not altered when amlodipine, valsartan, and hydrochlorothiazide tablets were administered with food. Amlodipine, valsartan, and hydrochlorothiazide tablets may be administered with or without food.

Amlodipine

Peak plasma concentrations of amlodipine are reached 6 to 12 hours after administration of amlodipine alone. Absolute bioavailability has been estimated to be between 64% and 90%. The apparent volume of distribution of amlodipine is 21 L/kg. Approximately 93% of circulating amlodipine is bound to plasma proteins in hypertensive patients.

Amlodipine is extensively (about 90%) converted to inactive metabolites via hepatic metabolism with 10% of the parent compound and 60% of the metabolites excreted in the urine.

Elimination of amlodipine from the plasma is biphasic with a terminal elimination half-life of about 30 to 50 hours. Steady state plasma levels of amlodipine are reached after 7 to 8 days of consecutive daily dosing.

Valsartan

Following oral administration of valsartan alone peak plasma concentrations of valsartan are reached in 2 to 4 hours. Absolute bioavailability is about 25% (range 10% to 35%).

The steady state volume of distribution of valsartan after intravenous administration is 17 L indicating that valsartan does not distribute into tissues extensively. Valsartan is highly bound to serum proteins (95%), mainly serum albumin.

Valsartan shows biexponential decay kinetics following intravenous administration with an average elimination half-life of about 6 hours. The recovery is mainly as unchanged drug, with only about 20% of dose recovered as metabolites. The primary metabolite, accounting for about 9% of dose, is valeryl 4-hydroxy valsartan. In vitro metabolism studies involving recombinant CYP450 enzymes indicated that the CYP2C9 isoenzyme is responsible for the formation of valeryl-4-hydroxy valsartan. Valsartan does not inhibit CYP450 isozymes at clinically relevant concentrations. CYP450 mediated drug interaction between valsartan and coadministered drugs are unlikely because of the low extent of metabolism.

Valsartan, when administered as an oral solution, is primarily recovered in feces (about 83% of dose) and urine (about 13% of dose). Following intravenous administration, plasma clearance of valsartan is about 2 L/h and its renal clearance is 0.62 L/h (about 30% of total clearance).

Hydrochlorothiazide

The estimated absolute bioavailability of hydrochlorothiazide after oral administration is about 70%. Peak plasma hydrochlorothiazide concentrations (C_max) are reached within 2 to 5 hours after oral administration. There is no clinically significant effect of food on the bioavailability of hydrochlorothiazide.

Hydrochlorothiazide binds to albumin (40% to 70%) and distributes into erythrocytes. Following oral administration, plasma hydrochlorothiazide concentrations decline biexponentially, with a mean distribution half-life of about 2 hours and an elimination half-life of about 10 hours.

About 70% of an orally administered dose of hydrochlorothiazide is eliminated in the urine as unchanged drug.

Special Populations

Geriatric: Elderly patients have decreased clearance of amlodipine with a resulting increase in peak plasma levels, elimination half-life, and AUC. Exposure (measured by AUC) to valsartan is higher by 70% and the half-life is longer by 35% in the elderly than in the young. Limited amount of data suggest that the systemic clearance of hydrochlorothiazide is reduced in both healthy and hypertensive elderly subjects compared to young healthy volunteers.

Gender: Pharmacokinetics of valsartan do not differ significantly between males and females.

Race: Pharmacokinetic differences due to race have not been studied.

Renal Insufficiency: The pharmacokinetics of amlodipine are not significantly influenced by renal impairment. There is no apparent correlation between renal function (measured by creatinine clearance) and exposure (measured by AUC) to valsartan in patients with different degrees of renal impairment. Valsartan has not been studied in patients with severe impairment of renal function (creatinine clearance < 10 mL/min). Valsartan is not removed from the plasma by hemodialysis.

In a study in individuals with impaired renal function, the mean elimination half-life of hydrochlorothiazide was doubled in individuals with mild/moderate renal impairment (30 < CrCl < 90 mL/min) and tripled in severe renal impairment (CrCl ≤ 30 mL/min), compared to individuals with normal renal function (CrCl > 90 mL/min) [see Use in Specific Populations (8.6)].

Hepatic Insufficiency: Patients with hepatic insufficiency have decreased clearance of amlodipine with resulting increase in AUC of approximately 40% to 60%. On average, patients with mild-to-moderate chronic liver disease have twice the exposure (measured by AUC values) to valsartan of healthy volunteers (matched by age, sex, and weight) [see Use in Specific Populations (8.7)].

Drug Interactions

Amlodipine:

In vitro data in human plasma indicate that amlodipine has no effect on the protein binding of digoxin, phenytoin, warfarin, and indomethacin.

Impact of other drugs on amlodipine

Coadministered cimetidine, magnesium-and aluminum hydroxide antacids, sildenafil, and grapefruit juice have no impact on the exposure to amlodipine.

CYP3A inhibitors: Coadministration of a 180 mg daily dose of diltiazem with 5 mg amlodipine in elderly hypertensive patients resulted in a 60% increase in amlodipine systemic exposure. Erythromycin coadministration in healthy volunteers did not significantly change amlodipine systemic exposure. However, strong inhibitors of CYP3A (e.g., itraconazole, clarithromycin) may increase the plasma concentrations of amlodipine to a greater extent [see Drug Interactions (7)].

Impact of amlodipine on other drugs

Coadministered amlodipine does not affect the exposure to atorvastatin, digoxin, ethanol and the warfarin prothrombin response time.

Simvastatin: Coadministration of multiple doses of 10 mg of amlodipine with 80 mg simvastatin resulted in a 77% increase in exposure to simvastatin compared to simvastatin alone [see Drug Interactions (7)].

Cyclosporine: A prospective study in renal transplant patients (N = 11) showed on an average of 40% increase in trough cyclosporine levels when concomitantly treated with amlodipine [see Drug Interactions (7)].

Tacrolimus: A prospective study in healthy Chinese volunteers (N = 9) with CYP3A5 expressers showed a 2.5- to 4-fold increase in tacrolimus exposure when concomitantly administered with amlodipine compared to tacrolimus alone. This finding was not observed in CYP3A5 non-expressers (N = 6). However, a 3-fold increase in plasma exposure to tacrolimus in a renal transplant patient (CYP3A5 non-expresser) upon initiation of amlodipine for the treatment of post-transplant hypertension resulting in reduction of tacrolimus dose has been reported. Irrespective of the CYP3A5 genotype status, the possibility of an interaction cannot be excluded with these drugs [see Drug Interactions (7)].

Hydrochlorothiazide:

Drugs that alter gastrointestinal motility: The bioavailability of thiazide-type diuretics may be increased by anticholinergic agents (e.g., atropine, biperiden), apparently due to a decrease in gastrointestinal motility and the stomach emptying rate. Conversely, pro-kinetic drugs may decrease the bioavailability of thiazide diuretics.

Cholestyramine: In a dedicated drug interaction study, administration of cholestyramine 2 hours before hydrochlorothiazide resulted in a 70% reduction in exposure to hydrochlorothiazide. Further, administration of hydrochlorothiazide 2 hours before cholestyramine resulted in 35% reduction in exposure to hydrochlorothiazide.

Antineoplastic agents (e.g., cyclophosphamide, methotrexate): Concomitant use of thiazide diuretics may reduce renal excretion of cytotoxic agents and enhance their myelosuppressive effects.

Alcohol, barbiturates, or narcotics: Potentiation of orthostatic hypotension may occur.

Skeletal muscle relaxants: Possible increased responsiveness to muscle relaxants such as curare derivatives.

Digitalis glycosides: Thiazide-induced hypokalemia or hypomagnesemia may predispose the patient to digoxin toxicity.

13 Nonclinical Toxicology

13.1 Carcinogenesis, Mutagenesis, Impairment of Fertility

Studies with amlodipine/valsartan/hydrochlorothiazide: No carcinogenicity, mutagenicity, or fertility studies have been conducted with this combination. However, these studies have been conducted for amlodipine, valsartan and hydrochlorothiazide alone. Based on the preclinical safety and human pharmacokinetic studies, there is no indication of any toxicologically significant adverse interaction between these components.

Studies with amlodipine: Rats and mice treated with amlodipine maleate in the diet for up to two years, at concentrations calculated to provide daily dosage levels of 0.5, 1.25, and 2.5 mg amlodipine/kg/day, showed no evidence of a carcinogenic effect of the drug. For the mouse, the highest dose was, on mg/m²basis, similar to the MRHD of 10 mg amlodipine/day. For the rat, the highest dose was, on a mg/m² basis, about 2.5 times the MRHD. (Calculations based on a 60 kg patient.)

Mutagenicity studies conducted with amlodipine maleate revealed no drug-related effects at either the gene or chromosome level.

There was no effect on the fertility of rats treated orally with amlodipine maleate (males for 64 days and females for 14 days prior to mating) at doses of up to 10 mg amlodipine/kg/day (about 10 times the MRHD of 10 mg/day on a mg/m² basis).

Studies with valsartan: There was no evidence of carcinogenicity when valsartan was administered in the diet to mice and rats for up to 2 years at concentrations calculated to provide doses of up to 160 and 200 mg/kg/day, respectively. These doses in mice and rats are about 2.4 and 6 times, respectively, the MRHD of 320 mg/day on a mg/m² basis. (Calculations based on a 60 kg patient.)

Mutagenicity assays did not reveal any valsartan-related effects at either the gene or chromosome level. These assays included bacterial mutagenicity tests with Salmonella and E. coli, a gene mutation test with Chinese hamster V79 cells, a cytogenetic test with Chinese hamster ovary cells, and a rat micronucleus test.

Valsartan had no adverse effects on the reproductive performance of male or female rats at oral doses of up to 200 mg/kg/day. This dose is about 6 times the MRHD on a mg/m² basis.

Studies with hydrochlorothiazide: Two-year feeding studies in mice and rats conducted under the auspices of the National Toxicology Program (NTP) uncovered no evidence of a carcinogenic potential of hydrochlorothiazide in female mice (at doses of up to approximately 600 mg/kg/day) or in male and female rats (at doses of up to approximately 100 mg/kg/day). The NTP, however, found equivocal evidence for hepatocarcinogenicity in male mice.

Hydrochlorothiazide was not genotoxic in vitro in the Ames mutagenicity assay of Salmonella Typhimurium strains TA 98, TA 100, TA 1535, TA 1537, and TA 1538 and in the Chinese Hamster Ovary (CHO) test for chromosomal aberrations, or in vivo in assays using mouse germinal cell chromosomes, Chinese hamster bone marrow chromosomes, and the Drosophila sex-linked recessive lethal trait gene. Positive test results were obtained in the in vitro CHO Sister Chromatid Exchange (clastogenicity) and Mouse Lymphoma Cell (mutagenicity) assays and in the Aspergillus Nidulans non-disjunction assay.

Hydrochlorothiazide had no adverse effects on the fertility of mice and rats of either sex in studies wherein these species were exposed via diet at doses of up to 100 and 4 mg/kg, respectively, prior to mating and throughout gestation. These doses of hydrochlorothiazide in mice and rats are 19 and 1.5 times, respectively, the MRHD on a mg/m² basis. (Calculations assume an oral dose of 25 mg/day and a 60 kg patient.)

13.3 Developmental Toxicity

Studies with amlodipine: No evidence of teratogenicity or other embryo/fetal toxicity was found when pregnant rats and rabbits were treated orally with amlodipine maleate at doses of up to 10 mg amlodipine/kg/day (respectively, about 10 and 20 times the MRHD of 10 mg amlodipine on a mg/m² basis) during their respective periods of major organogenesis. (Calculations based on a patient weight of 60 kg.) However, litter size was significantly decreased (by about 50%) and the number of intrauterine deaths was significantly increased (about 5 fold) for rats receiving amlodipine maleate at a dose equivalent to 10 mg amlodipine/kg/day for 14 days before mating and throughout mating and gestation. Amlodipine maleate has been shown to prolong both the gestation period and the duration of labor in rats at this dose. There are no adequate and well controlled studies in pregnant women.

Studies with valsartan: No teratogenic effects were observed when valsartan was administered to pregnant mice and rats at oral doses of up to 600 mg/kg/day and to pregnant rabbits at oral doses of up to 10 mg/kg/day. However, significant decreases in fetal weight, pup birth weight, pup survival rate, and slight delays in developmental milestones were observed in studies in which parental rats were treated with valsartan at oral, maternally toxic (reduction in body weight gain and food consumption) doses of 600 mg/kg/day during organogenesis or late gestation and lactation. In rabbits, fetotoxicity (i.e., resorptions, litter loss, abortions, and low body weight) associated with maternal toxicity (mortality) was observed at doses of 5 and 10 mg/kg/day. The no observed adverse effect doses of 600, 200 and 2 mg/kg/day in mice, rats and rabbits, respectively, are about 9, 6 and 0.1 times the MRHD of 320 mg/day on a mg/m² basis. (Calculations based on a patient weight of 60 kg.)

Studies with hydrochlorothiazide: Under the auspices of the National Toxicology Program, pregnant mice and rats that received hydrochlorothiazide via gavage at doses up to 3000 and 1000 mg/kg/day, respectively, on gestation days 6 through 15 showed no evidence of teratogenicity. These doses of hydrochlorothiazide in mice and rats are 608 and 405 times, respectively, the MRHD on a mg/m² basis. (Calculations assume an oral dose of 25 mg/day and a 60 kg patient.)

Studies with amlodipine and valsartan: In the oral embryofetal development study in rats using amlodipine besylate plus valsartan at doses equivalent to 5 mg/kg/day amlodipine plus 80 mg/kg/day valsartan, 10 mg/kg/day amlodipine plus 160 mg/kg/day valsartan, and 20 mg/kg/day amlodipine plus 320 mg/kg/day valsartan, treatment-related maternal and fetal effects (developmental delays and alterations noted in the presence of significant maternal toxicity) were noted with the high dose combination. The no-observed-adverse-effect level (NOAEL) for embryofetal effects was 10 mg/kg/day amlodipine plus 160 mg/kg/day valsartan. On a systemic exposure [AUC_(0-∞)] basis, these doses are, respectively, 4.3 and 2.7 times the systemic exposure [AUC_(0-∞)] in humans receiving the MRHD (10/320 mg/60 kg).

Studies with valsartan and hydrochlorothiazide: There was no evidence of teratogenicity in mice, rats, or rabbits treated orally with valsartan at doses up to 600, 100, and 10 mg/kg/day, respectively, in combination with hydrochlorothiazide at doses up to 188, 31, and 3 mg/kg/day. These non-teratogenic doses in mice, rats and rabbits are, respectively, 9, 3.5, and 0.5 times the MRHD of valsartan and 38, 13, and 2 times the MRHD of hydrochlorothiazide on a mg/m² basis. (Calculations assume an oral dose of 320 mg/day valsartan in combination with 25 mg/day hydrochlorothiazide in a 60 kg patient.)

Fetotoxicity was observed in association with maternal toxicity in rats at valsartan/hydrochlorothiazide doses ≥ 200/63 mg/kg/day and in rabbits at valsartan/hydrochlorothiazide doses of 10/3 mg/kg/day. Evidence of fetotoxicity in rats consisted of decreased fetal weight and fetal variations of sternebrae, vertebrae, ribs, and/or renal papillae. Evidence of fetotoxicity in rabbits included increased numbers of late resorptions with resultant increases in total resorptions, postimplantation losses, and decreased number of live fetuses. The no observed adverse effect doses of the valsartan/hydrochlorothiazide combination in mice, rats and rabbits were 600/188, 100/31 and 3/1 mg/kg/day, respectively. These doses in mice, rats and rabbits are, respectively, 9, 3 and 0.18 times the MRHD of valsartan and 38, 13, and 0.5 times the MRHD of hydrochlorothiazide on a mg/m² basis. (Calculations assume an oral dose of 320 mg/day valsartan in combination with 25 mg/day hydrochlorothiazide in a 60 kg patient.)

14 Clinical Studies

Amlodipine, valsartan, and hydrochlorothiazide tablets were studied in a double-blind, active controlled study in hypertensive patients. A total of 2,271 patients with moderate to severe hypertension (mean baseline systolic/diastolic blood pressure was 170/107 mmHg) received treatments of amlodipine/valsartan/HCTZ 10/320/25 mg, valsartan/HCTZ 320/25 mg, amlodipine/valsartan 10/320 mg, or HCTZ/amlodipine 25/10 mg. At study initiation patients assigned to the 2-component arms received lower doses of their treatment combination while patients assigned to the amlodipine, valsartan, and hydrochlorothiazide tablets arm received 160/12.5 mg valsartan/hydrochlorothiazide. After 1 week, amlodipine, valsartan, and hydrochlorothiazide tablet patients were titrated to 5/160/12.5 mg amlodipine/valsartan/hydrochlorothiazide, while all other patients continued receiving their initial doses. After 2 weeks, all patients were titrated to their full treatment dose. A total of 55% of patients were male, 14% were 65 years or older, 72% were Caucasian, and 17% were black.

At week 8, the triple combination therapy produced greater reductions in blood pressure than each of the 3 dual combination treatments (p < 0.0001 for both diastolic and systolic blood pressures reductions). The reductions in systolic/diastolic blood pressure with amlodipine, valsartan, and hydrochlorothiazide tablets were 7.6/5.0 mmHg greater than with valsartan/HCTZ, 6.2/3.3 mmHg greater than with amlodipine/valsartan, and 8.2/5.3 mmHg greater than with amlodipine/HCTZ (see Figure 1). The full blood pressure lowering effect was achieved 2 weeks after being on the maximal dose of amlodipine, valsartan, and hydrochlorothiazide tablets (see Figure 2 and Figure 3). As the pivotal study was an active-controlled trial, the treatment effects shown in Figures 1, 2, and 3 include a placebo effect of unknown size.

Figure 1: Reduction in Mean Blood Pressure at Endpoint
Figure 2: Mean Sitting Diastolic Blood Pressure by Treatment and Week Figure 2: Mean Sitting Diastolic Blood Pressure by Treatment and Week
Figure 3: Mean Sitting Systolic Blood Pressure by Treatment and Week

A subgroup of 283 patients was studied with ambulatory blood pressure monitoring. The blood pressure lowering effect in the triple therapy group was maintained throughout the 24 hour period (see Figure 4 and Figure 5).
Figure 4: Mean Ambulatory Diastolic Blood Pressure at Endpoint by Treatment and Hour Figure 4: Mean Ambulatory Diastolic Blood Pressure at Endpoint by Treatment and Hour
Figure 5: Mean Ambulatory Systolic Blood Pressure at Endpoint by Treatment and Hour

There are no trials of the amlodipine, valsartan, and hydrochlorothiazide combination tablet demonstrating reductions in cardiovascular risk in patients with hypertension, but both the amlodipine and hydrochlorothiazide components and several ARBs, which are the same pharmacological class as the valsartan component, have demonstrated such benefits.

16 How Supplied/storage And Handling

Amlodipine, valsartan, and hydrochlorothiazide tablets are available as:

5/160/12.5 mg - white to off-white, film coated, standard convex round tablet, debossed with "TV" on one side and "7807" on the other side of the tablet and contains 6.9 mg amlodipine besylate equivalent to 5 mg of amlodipine free-base, 160 mg valsartan, and 12.5 mg hydrochlorothiazide. They are available in bottles of 30 (NDC 0093-7807-56) and 90 (NDC 0093-7807-98).

5/160/25 mg - very dark-yellow to yellow, film coated, standard convex round tablet, debossed with "TV" on one side and with "7037" on the other side of the tablet and contains 6.9 mg amlodipine besylate equivalent to 5 mg of amlodipine free-base, 160 mg valsartan, and 25 mg hydrochlorothiazide. They are available in bottles of 30 (NDC 0093-7037-56) and 90 (NDC 0093-7037-98).

10/160/12.5 mg - light-yellow to yellowish, film coated, standard convex round tablet, debossed with "TV" on one side and with "7810" on the other side of the tablet and contains 13.9 mg amlodipine besylate equivalent to 10 mg of amlodipine free-base, 160 mg valsartan, and 12.5 mg hydrochlorothiazide. They are available in bottles of 30 (NDC 0093-7810-56) and 90 (NDC 0093-7810-98).

10/160/25 mg - light-brown to brown, film coated, standard convex round tablet, debossed with "TV" on one side and with "7038" on the other side of the tablet and contains 13.9 mg amlodipine besylate equivalent to 10 mg of amlodipine free-base, 160 mg valsartan, and 25 mg hydrochlorothiazide. They are available in bottles of 30 (NDC 0093-7038-56) and 90 (NDC 0093-7038-98).

10/320/25 mg - light-brown to brown, film coated, standard convex round tablet, debossed with "TV" on one side and with "7809" on the other side of the tablet and contains 13.9 mg amlodipine besylate equivalent to 10 mg of amlodipine free-base, 320 mg valsartan, and 25 mg hydrochlorothiazide. They are available in bottles of 30 (NDC 0093-7809-56) and 90 (NDC 0093-7809-98).

Store at 20° to 25°C (68° to 77°F) [See USP Controlled Room Temperature].

Protect from moisture.

Dispense in a tight, light-resistant container as defined in the USP, with a child-resistant closure (as required).

17 Patient Counseling Information

Advise the patient to read the FDA-approved patient labeling (Patient Information).

Pregnancy: Female patients of childbearing age should be told about the consequences of exposure to amlodipine, valsartan, and hydrochlorothiazide tablets during pregnancy. Discuss treatment options with women planning to become pregnant. Patients should be asked to report pregnancies to their physicians as soon as possible.

Symptomatic Hypotension: A patient receiving amlodipine, valsartan, and hydrochlorothiazide tablets should be cautioned that lightheadedness can occur, especially during the first days of therapy, and that it should be reported to the prescribing physician. The patients should be told that if syncope occurs, amlodipine, valsartan, and hydrochlorothiazide tablets should be discontinued until the physician has been consulted.

All patients should be cautioned that inadequate fluid intake, excessive perspiration, diarrhea, or vomiting can lead to an excessive fall in blood pressure, with the same consequences of lightheadedness and possible syncope.

Potassium Supplements: A patient receiving amlodipine, valsartan, and hydrochlorothiazide tablets should be told not to use potassium supplements or salt substitutes containing potassium without consulting the prescribing physician.

All brand names uled are the registered trademarks of their respective owners and are not trademarks of Teva Pharmaceuticals USA, Inc.

Manufactured In Israel By:

TEVA PHARMACEUTICAL IND. LTD.

Jerusalem, 9777402, Israel

Manufactured For:

TEVA PHARMACEUTICALS USA, INC.

North Wales, PA 19454

Rev. E 7/2015

Information For Patients

Patient Information

Amlodipine (am-LOE-dih-peen), Valsartan (val-SAR-tan), and Hydrochlorothiazide (hye-droe-klor-oh-THYE-ah-zide) Tablets

Read the Patient Information that comes with amlodipine, valsartan, and hydrochlorothiazide tablets before you start taking them and each time you get a refill. There may be new information. This leaflet does not take the place of talking with your doctor about your medical condition or treatment.

What is the most important information I should know about amlodipine, valsartan, and hydrochlorothiazide tablets?

Amlodipine, valsartan, and hydrochlorothiazide tablets can cause harm or death to an unborn baby.

Talk to your doctor about other ways to lower your blood pressure if you plan to become pregnant.

If you get pregnant while taking amlodipine, valsartan, and hydrochlorothiazide tablets, tell your doctor right away.

What are amlodipine, valsartan, and hydrochlorothiazide tablets?

Amlodipine, valsartan, and hydrochlorothiazide tablets contain 3 prescription medicines:

amlodipine, a calcium channel blocker

valsartan, an angiotensin receptor blocker, and

hydrochlorothiazide, a diuretic (water pill)

Amlodipine, valsartan, and hydrochlorothiazide tablets may be used to lower blood pressure in adults when 2 medicines to lower your high blood pressure are not enough.

Amlodipine, valsartan, and hydrochlorothiazide tablets have not been studied in children under 18 years of age.

Who should not take amlodipine, valsartan, and hydrochlorothiazide tablets?

Do not take amlodipine, valsartan, and hydrochlorothiazide tablets if you have low or no urine output (anuria).

What should I tell my doctor before taking amlodipine, valsartan, and hydrochlorothiazide tablets?

Tell your doctor about all of your medical conditions, including if you:

are pregnant or plan to become pregnant. See “What is the most important information I should know about amlodipine, valsartan, and hydrochlorothiazide tablets?”

are breastfeeding or plan to breastfeed. Amlodipine, valsartan, and hydrochlorothiazide may pass into your milk. Do not breastfeed while you are taking amlodipine, valsartan, and hydrochlorothiazide tablets.

are allergic to any of the ingredients in amlodipine, valsartan, and hydrochlorothiazide tablets. See the end of this leaflet for a ul of the ingredients in amlodipine, valsartan, and hydrochlorothiazide tablets.

have heart problems

have liver problems

have kidney problems

are vomiting or having a lot of diarrhea

have or had gallstones

have Lupus

have low levels of potassium (with or without symptoms such as muscle weakness, muscle spasms, abnormal heart rhythm) or magnesium in your blood

have high levels of calcium in your blood (with or without symptoms such as nausea, vomiting, constipation, stomach pain, frequent urination, thirst, muscle weakness, and twitching).

have high levels of uric acid in the blood.

have ever had a reaction called angioedema, to another blood pressure medicine. Angioedema causes swelling of the face, lips, tongue, and may cause difficulty breathing.

Tell your doctor about all the medicines you take, including prescription and nonprescription medicines, vitamins, and herbal supplements. Some of your other medicines and amlodipine, valsartan, and hydrochlorothiazide tablets could affect each other, causing serious side effects.

Especially tell your doctor if you take:

simvastatin or other cholesterol-lowering medicine

other medicines for high blood pressure or a heart problem

water pills (“diuretics”)

potassium supplements. Your doctor may check the amount of potassium in your blood periodically.

salt substitute containing potassium. Your doctor may check the amount of potassium in your blood periodically.

diabetes medicine including insulin

narcotic pain medicines

sleeping pills and antiseizure medicines called barbiturates

lithium, a medicine used to treat some types of depression

aspirin or other medicines called non-steroidal anti-inflammatory drugs (NSAIDs), like ibuprofen or naproxen

steroids

alcohol

digoxin or other digitalis glycosides (a heart medicine)

muscle relaxants (medicines used during operations)

certain cancer medicines, like cyclophosphamide or methotrexate

medicines used to prevent and treat fungal infections (such as ketoconazole, itraconazole)

medicines used to treat bacterial infections (such as clarithromycin, telithromycin)

certain antibiotics (rifamycin group), a drug used to protect against transplant rejection (cyclosporine) or an antiretroviral drug used to treat HIV/AIDS infection (ritonavir). These drugs may increase the effect of valsartan.

Know the medicines you take. Keep a ul of your medicines and show it to your doctor or pharmacist when you get a new medicine.

How should I take amlodipine, valsartan, and hydrochlorothiazide tablets?

Take amlodipine, valsartan, and hydrochlorothiazide tablets exactly as your doctor tells you.

Take amlodipine, valsartan, and hydrochlorothiazide tablets one time each day.

Amlodipine, valsartan, and hydrochlorothiazide tablets can be taken with or without food.

If you miss a dose, take it as soon as you remember. If it is close to your next dose, do not take the missed dose. Just take the next dose at the regular time.

If you take too many amlodipine, valsartan, and hydrochlorothiazide tablets, call your doctor or Poison Control Center, or go to the emergency room.

Tell all your doctors and dentist you are taking amlodipine, valsartan, and hydrochlorothiazide tablets. This is especially important if you:

are going to have surgery

go for kidney dialysis

What are the possible side effects of amlodipine, valsartan, and hydrochlorothiazide tablets?

Amlodipine, valsartan, and hydrochlorothiazide tablets may cause serious side effects including:

harm to an unborn baby causing injury or death. See “What is the most important information I should know about amlodipine, valsartan, and hydrochlorothiazide tablets?”

low blood pressure (hypotension). Low blood pressure is most likely to happen if you:

take water pills

are on a low salt diet

have heart problems

get dialysis treatments

get sick with vomiting or diarrhea

drink alcohol.

Lie down if you feel faint or dizzy. If you faint (lose consciousness), stop taking amlodipine, valsartan, and hydrochlorothiazide tablets. Call your doctor right away.

Get emergency help if you get worse chest pain or chest pain that does not go away.

kidney problems. Kidney problems may become worse in people that already have kidney disease. Some people will have changes in blood tests for kidney function and may need a lower dose of amlodipine, valsartan, and hydrochlorothiazide tablets. Call your doctor if you have swelling in your feet, ankles, or hands, or unexplained weight gain. If you have heart failure, your doctor should check your kidney function before prescribing amlodipine, valsartan, and hydrochlorothiazide tablets.

laboratory blood test changes in people with heart failure. Some people with heart failure who take valsartan, one of the medicines in amlodipine, valsartan, and hydrochlorothiazide tablets, have changes in blood tests including increased potassium and decreased kidney function.

allergic reactions

skin rash. Call your doctor right away if you get an unusual skin rash.

eye problems. One of the medicines in amlodipine, valsartan, and hydrochlorothiazide tablets can cause eye problems that may lead to vision loss. Symptoms of eye problems can happen within hours to weeks of starting amlodipine, valsartan, and hydrochlorothiazide tablets. Tell your doctor right away if you have:

decrease in vision

eye pain

The most common side effects of amlodipine, valsartan, and hydrochlorothiazide tablets include:

dizziness

swelling (edema) of the hands, ankles, or feet

headache

indigestion

tiredness

muscle spasms

back pain

nausea

Tell your doctor if you have any side effect that bothers you or that does not go away.

These are not all the possible side effects of amlodipine, valsartan, and hydrochlorothiazide tablets. For more information, ask your doctor or pharmacist.

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

How should I store amlodipine, valsartan, and hydrochlorothiazide tablets?

Store amlodipine, valsartan, and hydrochlorothiazide tablets at room temperature between 20° to 25°C (68° to 77°F).

Keep amlodipine, valsartan, and hydrochlorothiazide tablets dry (protect them from moisture).

Keep amlodipine, valsartan, and hydrochlorothiazide tablets and all medicines out of the reach of children.

General Information about amlodipine, valsartan, and hydrochlorothiazide tablets

Medicines are sometimes prescribed for conditions that are not mentioned in the patient information leaflet. Do not use amlodipine, valsartan, and hydrochlorothiazide tablets for a condition for which they were not prescribed. Do not give amlodipine, valsartan, and hydrochlorothiazide tablets to other people, even if they have the same symptoms that you have. They may harm them.

This patient information leaflet summarizes the most important information about amlodipine, valsartan, and hydrochlorothiazide tablets. If you would like more information about amlodipine, valsartan, and hydrochlorothiazide tablets, talk with your doctor. You can ask your doctor or pharmacist for information about amlodipine, valsartan, and hydrochlorothiazide tablets that is written for health professionals. For more information call 1-888-838-2872.

What are the ingredients in amlodipine, valsartan, and hydrochlorothiazide tablets?

Active ingredients: amlodipine besylate, valsartan, and hydrochlorothiazide

Inactive ingredients: calcium phosphate dibasic, colloidal silicon dioxide, crospovidone, magnesium stearate, microcrystalline cellulose, polyethylene glycol, polyvinyl alcohol, sodium starch glycolate, starch, talc, and titanium dioxide. Additionally, the 5/160/25 mg and 10/160/12.5 mg strengths contain iron oxide yellow; the 10/160/25 mg and the 10/320/25 mg strengths contain D&C yellow #10 aluminum lake, FD&C blue #2/indigo carmine aluminum lake, FD&C red #40/allura red AC aluminum lake, and FD&C yellow #6/sunset yellow FCF aluminum lake.

What is high blood pressure (hypertension)?

Blood pressure is the force of blood in your blood vessels when your heart beats and when your heart rests. You have high blood pressure when the force is too much. Amlodipine, valsartan, and hydrochlorothiazide tablets can help your blood vessels relax so your blood pressure is lower. Medicines that lower blood pressure lower your chance of having a stroke or heart attack.

High blood pressure makes the heart work harder to pump blood throughout the body and causes damage to blood vessels. If high blood pressure is not treated, it can lead to stroke, heart attack, heart failure, kidney failure, and vision problems.

Manufactured In Israel By:

TEVA PHARMACEUTICAL IND. LTD.

Jerusalem, 9777402, Israel

Manufactured For:

TEVA PHARMACEUTICALS USA, INC.

North Wales, PA 19454

Rev. D 7/2015

Package/label Display Panel

Amlodipine, Valsartan, and Hydrochlorothiazide Tablets 5 mg/160 mg/12.5 mg 90s Label Text

NDC 0093-7807-98

Amlodipine, Valsartan,

and Hydrochlorothiazide

Tablets

5 mg/160 mg/12.5 mg

PHARMACIST: PLEASE DISPENSE WITH

ATTACHED PATIENT INFORMATION LEAFLET

Rx only

90 TABLETS

TEVA

Package/label Display Panel

Amlodipine, Valsartan, and Hydrochlorothiazide Tablets 5 mg/160 mg/25 mg 90s Label Text

NDC 0093-7037-98

Amlodipine, Valsartan,

and Hydrochlorothiazide

Tablets

5 mg/160 mg/25 mg

PHARMACIST: PLEASE DISPENSE WITH

ATTACHED PATIENT INFORMATION LEAFLET

Rx only

90 TABLETS

TEVA

Package/label Display Panel

Amlodipine, Valsartan, and Hydrochlorothiazide Tablets 10 mg/160 mg/12.5 mg 90s Label Text

NDC 0093-7810-98

Amlodipine, Valsartan,

and Hydrochlorothiazide

Tablets

10 mg/160 mg/12.5 mg

PHARMACIST: PLEASE DISPENSE WITH

ATTACHED PATIENT INFORMATION LEAFLET

Rx only

90 TABLETS

TEVA

Package/label Display Panel

Amlodipine, Valsartan, and Hydrochlorothiazide Tablets 10 mg/160 mg/25 mg 90s Label Text

NDC 0093-7038-98

Amlodipine, Valsartan,

and Hydrochlorothiazide

Tablets

10 mg/160 mg/25 mg

PHARMACIST: PLEASE DISPENSE WITH

ATTACHED PATIENT INFORMATION LEAFLET

Rx only

90 TABLETS

TEVA

Package/label Display Panel

Amlodipine, Valsartan, and Hydrochlorothiazide Tablets 10 mg/320 mg/25 mg 90s Label Text

NDC 0093-7809-98

Amlodipine, Valsartan,

and Hydrochlorothiazide

Tablets

10 mg/320 mg/25 mg

PHARMACIST: PLEASE DISPENSE WITH

ATTACHED PATIENT INFORMATION LEAFLET

Rx only

90 TABLETS

TEVA

DISCLAIMER:

"This tool does not provide medical advice, and is for informational and educational purposes only, and is not a substitute for professional medical advice, treatment or diagnosis. Call your doctor to receive medical advice. If you think you may have a medical emergency, please dial 911."

"Do not rely on openFDA to make decisions regarding medical care. While we make every effort to ensure that data is accurate, you should assume all results are unvalidated. We may limit or otherwise restrict your access to the API in line with our Terms of Service."

"This product uses publicly available data from the U.S. National Library of Medicine (NLM), National Institutes of Health, Department of Health and Human Services; NLM is not responsible for the product and does not endorse or recommend this or any other product."

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Preferred Term	Aml/Val/HCTZ 10/320/25 mg N = 582 n (%)	Val/HCTZ 320/25 mg N = 559 n (%)	Aml/Val 10/320 mg N = 566 n (%)	HCTZ/Aml 25/10 mg N = 561 n (%)
Dizziness	48 (8.2)	40 (7.2)	14 (2.5)	23 (4.1)
Edema	38 (6.5)	8 (1.4)	65 (11.5)	63 (11.2)
Headache	30 (5.2)	31 (5.5)	30 (5.3)	40 (7.1)
Dyspepsia	13 (2.2)	5 (0.9)	6 (1.1)	2 (0.4)
Fatigue	13 (2.2)	15 (2.7)	12 (2.1)	8 (1.4)
Muscle spasms	13 (2.2)	7 (1.3)	7 (1.2)	5 (0.9)
Back pain	12 (2.1)	13 (2.3)	5 (0.9)	12 (2.1)
Nausea	12 (2.1)	7 (1.3)	10 (1.8)	12 (2.1)
Nasopharyngitis	12 (2.1)	13 (2.3)	13 (2.3)	12 (2.1)

Amlodipine, Valsartan, and Hydrochlorothiazide (amlodipine besylate 5 mg valsartan 160 mg hydrochlorothiazide 12.5 mg) Dailymed

May Be DiscontinuedTry Other Labelers

Version History

Generic: amlodipine, valsartan, and hydrochlorothiazide

All Imprints

Boxed Warning

Warning: Fetal Toxicity

FDA Adverse Reactions

Warning: Fetal Toxicity

1 Indications And Usage

2 Dosage And Administration

2.1 General Considerations

2.2 Add-on / Switch Therapy

2.3 Replacement Therapy

2.4 Use With Other Antihypertensive Drugs

3 Dosage Forms And Strengths

4 Contraindications

5 Warnings And Precautions

5.1 Fetal Toxicity

5.2 Hypotension in Volume- or Salt-Depleted Patients

5.3 Increased Angina and/or Myocardial Infarction

5.4 Impaired Renal Function

5.5 Potassium Abnormalities

5.6 Hypersensitivity Reaction

5.7 Systemic Lupus Erythematosus

5.8 Lithium Interaction

5.9 Metabolic Imbalances

5.10 Acute Myopia and Secondary Angle-Closure Glaucoma

6 Adverse Reactions

6.1 Clinical Trials Experience

6.2 Postmarketing Experience

7 Drug Interactions

8 Use In Specific Populations

8.1 Pregnancy

8.3 Nursing Mothers

8.4 Pediatric Use

8.5 Geriatric Use

8.6 Renal Impairment

8.7 Hepatic Impairment

10 Overdosage

11 Description

12 Clinical Pharmacology

12.1 Mechanism of Action

12.2 Pharmacodynamics

12.3 Pharmacokinetics

13 Nonclinical Toxicology

13.1 Carcinogenesis, Mutagenesis, Impairment of Fertility

13.3 Developmental Toxicity

14 Clinical Studies

16 How Supplied/storage And Handling

17 Patient Counseling Information

Information For Patients

Package/label Display Panel

Amlodipine, Valsartan, and Hydrochlorothiazide Tablets 5 mg/160 mg/12.5 mg 90s Label Text

Package/label Display Panel

Amlodipine, Valsartan, and Hydrochlorothiazide Tablets 5 mg/160 mg/25 mg 90s Label Text

Package/label Display Panel

Amlodipine, Valsartan, and Hydrochlorothiazide Tablets 10 mg/160 mg/12.5 mg 90s Label Text

Package/label Display Panel

Amlodipine, Valsartan, and Hydrochlorothiazide Tablets 10 mg/160 mg/25 mg 90s Label Text

Package/label Display Panel

Amlodipine, Valsartan, and Hydrochlorothiazide Tablets 10 mg/320 mg/25 mg 90s Label Text

May Be Discontinued
Try Other Labelers