Glycopyrrolate (glycopyrrolate 1 mg) Dailymed
Generic: glycopyrrolate is used for the treatment of Colitis, Ulcerative Hyperhidrosis Hypersensitivity Intestinal Pseudo-Obstruction Megacolon, Toxic Myasthenia Gravis Sjogren's Syndrome Abnormalities, Drug-Induced Hemorrhagic Disorders Ileal Diseases Intestinal Obstruction Peptic Ulcer Respiratory Tract Diseases Tachycardia Ureteral Obstruction Xerostomia Glaucoma, Angle-Closure
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Description
Glycopyrrolate Tablets, USP contain the synthetic anticholinergic, glycopyrrolate. Glycopyrrolate is a quaternary ammonium compound with the following chemical name: 3-[(cyclopentylhydroxyacetyl)oxy]-1,1-dimethylpyrrolidinium bromide. Glycopyrrolate Tablets, USP 1 mg are White, Round Tablets; Debossed "WW" on the top of the score and "15" under score, plain on the other side. Each tablet contains:Glycopyrrolate, USP………..1 mg Glycopyrrolate Tablets, USP 2 mg are White, Round Tablets; Debossed "WW" on top of score and "16" under score, plain on the other side. Each tablet contains:Glycopyrrolate, USP……….2 mg Inactive Ingredients: Dibasic Calcium Phosphate, Lactose Anhydrous, Lactose Monohydrate, Magnesium Stearate, Polyvinylpyrrolidone, Sodium Starch Glycolate.
Clinical Pharmacology
Glycopyrrolate, like other anticholinergic (antimuscarinic) agents, inhibits the action of acetylcholine on structures innervated by postganglionic cholinergic nerves and on smooth muscles that respond to acetylcholine but lack cholinergic innervation. These peripheral cholinergic receptors are present in the autonomic effector cells of smooth muscle, cardiac muscle, the sino-atrial node, the atrioventricular node, exocrine glands, and, to a limited degree, in the autonomic ganglia. Thus, it diminishes the volume and free acidity of gastric secretions and controls excessive pharyngeal, tracheal, and bronchial secretions.  Glycopyrrolate antagonizes muscarinic symptoms (e.g., bronchorrhea, bronchospasm, bradycardia, and intestinal hypermotility) induced by cholinergic drugs such as the anticholinesterases. The highly polar quaternary ammonium group of glycopyrrolate limits its passage across lipid membranes, such as the blood-brain barrier, in contrast to atropine sulfate and scopolamine hydrobromide, which are non-polar tertiary amines which penetrate lipid barriers easily.
Indications And Usage
For use as adjunctive therapy in the treatment of peptic ulcer.
Contraindications
Glaucoma; obstructive uropathy (for example, bladder neck obstruction due to prostatic hypertrophy); obstructive disease of the gastrointestinal tract (as in achalasia, pyloroduodenal stenosis, etc.); paralytic ileus; intestinal atony of the elderly or debilitated patient; unstable cardiovascular status in acute hemorrhage; severe ulcerative colitis; toxic megacolon complicating ulcerative colitis; myasthenia gravis.  Glycopyrrolate Tablets are contraindicated in those patients with a hypersensitivity to glycopyrrolate.
Warnings
In the presence of a high environmental temperature, heat prostration (fever and heat stroke due to decreased sweating) can occur with the use of Glycopyrrolate Tablets. Diarrhea may be an early symptom of incomplete intestinal obstruction, especially in patients with ileostomy or colostomy. In this instance treatment with this drug would be inappropriate and possibly harmful. Glycopyrrolate Tablets may produce drowsiness or blurred vision. In this event, the patient should be warned not to engage in activities requiring mental alertness such as operating a motor vehicle or other machinery, or performing hazardous work while taking this drug.  Theoretically, with overdosage, a curare-like action may occur, i.e., neuro-muscular blockade leading to muscular weakness and possible paralysis.
Pregnancy
The safety of this drug during pregnancy has not been established. The use of any drug during pregnancy requires that the potential benefits of the drug be weighed against possible hazards to mother and child. Reproduction studies in rats revealed no teratogenic effects from glycopyrrolate; however, the potent anticholinergic action of this agent resulted in diminished rates of conception and of survival at weaning, in a dose-related manner. Other studies in dogs suggest that this may be due to diminished seminal secretion which is evident at high doses of glycopyrrolate. Information on possible adverse effects in the pregnant female is limited to uncontrolled data derived from marketing experience. Such experience has revealed no reports of teratogenic or other fetus-damaging potential. No controlled studies to establish the safety of the drug in pregnancy have been performed.
Nursing Mothers
It is not known whether this drug is excreted in human milk. As a general rule, nursing should not be undertaken while a patient is on a drug since many drugs are excreted in human milk.
Pediatric Use
Since there is no adequate experience in pediatric patients who have received this drug, safety and efficacy in pediatric patients have not been established.
Precautions
Use Glycopyrrolate Tablets with caution in the elderly and in all patients with:Â
- Autonomic neuropathy.
- Hepatic or renal disease.
- Ulcerative colitis - large doses may suppress intestinal motility to the point of producing a paralytic ileus and for this reason may precipitate or aggravate the "toxic megacolon," a serious complication of the disease.
- Hyperthyroidism, coronary heart disease, congestive heart failure, cardiac tachyarrhythmias, tachycardia, hypertension and prostatic hypertrophy.
- Hiatal hernia associated with reflux esophagitis, since anticholinergic drugs may aggravate this condition.
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Adverse Reactions
Anticholinergics produce certain effects, most of which are extensions of their fundamental pharmacological actions. Adverse reactions to anticholinergics in general may include xerostomia; decreased sweating; urinary hesitancy and retention; blurred vision; tachycardia; palpitations; dilatation of the pupil; cycloplegia; increased ocular tension; loss of taste; headaches; nervousness; mental confusion; drowsiness; weakness; dizziness; insomnia; nausea; vomiting; constipation; bloated feeling; impotence; suppression of lactation; severe allergic reaction or drug idiosyncrasies including anaphylaxis, urticaria and other dermal manifestations. Glycopyrrolate Tablets is chemically a quaternary ammonium compound; hence, its passage across lipid membranes, such as the blood-brain barrier, is limited in contrast to atropine sulfate and scopolamine hydrobromide. For this reason the occurrence of CNS related side effects is lower, in comparison to their incidence following administration of anticholinergics which are chemically tertiary amines that can cross this barrier readily.
To report SUSPECTED ADVERSE REACTIONS, contact West-ward Pharmaceutical Corp. at 1-877-233-2001 or the FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
Overdosage
The symptoms of overdosage of glycopyrrolate are peripheral in nature rather than central.Â
- To guard against further absorption of the drug - use gastric lavage, cathartics, and/or enemas.
- To combat peripheral anticholinergic effects (residual mydriasis, dry mouth, etc.) - utilize a quaternary ammonium anticholinesterase, such as neostigmine methylsulfate.
- To combat hypotension - use pressor amines (norepinephrine, metaraminol) i.v.; and supportive care.
- To combat respiratory depression - administer oxygen; utilize a respiratory stimulant such as Dopram® i.v.; artificial respiration.
Dosage And Administration
The dosage of Glycopyrrolate Tablets should be adjusted to the needs of the individual patient to assure symptomatic control with a minimum of adverse reactions. The presently recommended maximum daily dosage of glycopyrrolate is 8 mg.  Glycopyrrolate 1 mg Tablets. The recommended initial dosage of Glycopyrrolate Tablets 1 mg for adults is one tablet three times daily (in the morning, early afternoon, and at bedtime). Some patients may require two tablets at bedtime to assure overnight control of symptoms. For maintenance, a dosage of one tablet twice a day is frequently adequate. Glycopyrrolate 2 mg Tablets. The recommended dosage of Glycopyrrolate Tablets 2 mg for adults is one tablet two or three times daily at equally spaced intervals. Glycopyrrolate Tablets are not recommended for use in pediatric patients under the age of 12 years.
Drug Interactions
There are no known drug interactions.
How Supplied
Glycopyrrolate Tablets, USPÂ are available in the following strengths and package sizes:
Glycopyrrolate Tablets, USP 1 mg - White, Round Tablet; Debossed "WW" on the top of the score and "15" under score, plain on the other side.
    Bottles of 100 Tablets
Glycopyrrolate Tablets, USP 2 mg - White, Round Tablet; Debossed "WW" on top of score and "16" under score, plain on the other side.
    Bottles of 100 Tablets  Store at 20-25˚C (68-77˚F) [See USP Controlled Room Temperature]. Protect from light and moisture.  Dispense in tight, light-resistant container as defined in the USP using a child-resistant closure.  Rx only  Manufactured By: West-ward Pharmaceutical Corp. Eatontown, NJ 0772Revised February 2011
Principal Display Panel
Glycopyrrolate Tablets, USP1 mgNDC 0143-1250-01
Principal Display Panel
Glycopyrrolate Tablets, USP2 mgNDC 0143-1251-01
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