Ceftriaxone Dailymed
Generic: ceftriaxone is used for the treatment of Acinetobacter Infections Bone Diseases, Infectious Chancroid Clostridium Infections Enteritis Epididymitis Escherichia coli Infections Gallbladder Diseases Gonorrhea Jaundice, Neonatal Klebsiella Infections Lyme Disease Otitis Media Peritonitis Proctocolitis Proteus Infections Pseudomonas Infections Salmonella Infections Staphylococcal Infections Streptococcal Infections Surgical Wound Infection Urinary Tract Infections Bacteroidaceae Infections Serratia Infections Meningitis, Bacterial Skin Diseases, Bacterial Pneumonia, Bacterial Soft Tissue Infections Sepsis Pelvic Infection
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To reduce the development of drug-resistant bacteria and maintain the effectiveness of ceftriaxone for injection, and other antibacterial drugs, ceftriaxone for injection should be used only to treat or prevent infections that are proven or strongly suspected to be caused by bacteria.
Description
Ceftriaxone for Injection, USP is a sterile, semisynthetic, broad-spectrum cephalosporin antibiotic for intravenous or intramuscular administration. Ceftriaxone sodium is (6R, 7R)-7-[2-(2-Amino-4-thiazolyl) glyoxylamido]-8-oxo-3-[[(1,2,5,6-tetrahydro-2-methyl-5,6-dioxo-as-triazin-3-yl)thio]methyl]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, 72-(Z)-(O-methyloxime), disodium salt, sesquaterhydrate.
The chemical formula of ceftriaxone sodium is C18H16N8Na2O7S3∙3.5H2O. It has a calculated molecular weight of 661.60 and the following structural formula:
Ceftriaxone sodium is a white to yellowish-orange crystalline powder which is readily soluble in water, sparingly soluble in methanol and very slightly soluble in ethanol. The pH of a 1% aqueous solution is approximately 6.7. The color of Ceftriaxone for Injection, USP solutions ranges from light yellow to amber, depending on the length of storage, concentration and diluent used.
Ceftriaxone sodium contains approximately 83 mg (3.6 mEq) of sodium per gram of ceftriaxone activity.
Clinical Pharmacology
Average plasma concentrations of ceftriaxone following a single 30-minute intravenous (IV) infusion of a 0.5, 1 or 2 gram dose and intramuscular (IM) administration of a single 0.5 (250 mg/mL or 350 mg/mL concentrations) or 1 gram dose in healthy subjects are presented in Table 1.
Table 1 Ceftriaxone Plasma Concentrations After Single Dose Administration Average Plasma Concentrations (mcg/mL) Dose/Route 0.5 hr 1 hr 2 hr 4 hr 6 hr 8 hr 12 hr 16 hr 24 hr ND = Not determined. 0.5 gram IV IV doses were infused at a constant rate over 30 minutes. 82 59 48 37 29 23 15 10 5 0.5 gram IM250 mg/mL 22 33 38 35 30 26 16 ND 5 0.5 gram IM350 mg/mL 20 32 38 34 31 24 16 ND 5 1 gram IV 151 111 88 67 53 43 28 18 9 1 gram IM 40 68 76 68 56 44 29 ND ND 2 gram IV 257 192 154 117 89 74 46 31 15
Ceftriaxone was completely absorbed following IM administration with mean maximum plasma concentrations occurring between 2 and 3 hours post-dose. Multiple IV or IM doses ranging from 0.5 to 2 grams at 12- to 24-hour intervals resulted in 15% to 36% accumulation of ceftriaxone above single dose values.
Ceftriaxone concentrations in urine are shown in Table 2.
Table 2 Urinary Concentrations of Ceftriaxone After Single Dose Administration Average Urinary Concentrations (mcg/mL) Dose/Route 0 to 2 hr 2 to 4 hr 4 to 8 hr 8 to 12 hr 12 to 24 hr 24 to 48 hr ND = Not determined. 0.5 gram IV 526 366 142 87 70 15 0.5 gram IM 115 425 308 127 96 28 1 gram IV 995 855 293 147 132 32 1 gram IM 504 628 418 237 ND ND 2 gram IV 2692 1976 757 274 198 40
Thirty-three percent to 67% of a ceftriaxone dose was excreted in the urine as unchanged drug and the remainder was secreted in the bile and ultimately found in the feces as microbiologically inactive compounds. After a 1 gram IV dose, average concentrations of ceftriaxone, determined from 1 to 3 hours after dosing, were 581 mcg/mL in the gallbladder bile, 788 mcg/mL in the common duct bile, 898 mcg/mL in the cystic duct bile, 78.2 mcg/gram in the gallbladder wall and 62.1 mcg/mL in the concurrent plasma.
Over a 0.15 to 3 gram dose range in healthy adult subjects, the values of elimination half-life ranged from 5.8 to 8.7 hours; apparent volume of distribution from 5.78 to 13.5 L; plasma clearance from 0.58 to 1.45 L/hour; and renal clearance from 0.32 to 0.73 L/hour. Ceftriaxone is reversibly bound to human plasma proteins, and the binding decreased from a value of 95% bound at plasma concentrations of <25 mcg/mL to a value of 85% bound at 300 mcg/mL. Ceftriaxone crosses the blood placenta barrier.
The average values of maximum plasma concentration, elimination half-life, plasma clearance and volume of distribution after a 50 mg/kg IV dose and after a 75 mg/kg IV dose in pediatric patients suffering from bacterial meningitis are shown in Table 3. Ceftriaxone penetrated the inflamed meninges of infants and pediatric patients; CSF concentrations after a 50 mg/kg IV dose and after a 75 mg/kg IV dose are also shown in Table 3.
Table 3 Average Pharmacokinetic Parameters of Ceftriaxone in Pediatric Patients With Meningitis 50 mg/kg IV 75 mg/kg IV Maximum Plasma Concentrations (mcg/mL) 216 275 Elimination Half-life (hr) 4.6 4.3 Plasma Clearance (mL/hr/kg) 49 60 Volume of Distribution (mL/kg) 338 373 CSF Concentration-inflamed meninges (mcg/mL) 5.6 6.4   Range (mcg/mL) 1.3 to 18.5 1.3 to 44   Time after dose (hr) 3.7 (±1.6) 3.3 (±1.4)
Compared to that in healthy adult subjects, the pharmacokinetics of ceftriaxone were only minimally altered in elderly subjects and in patients with renal impairment or hepatic dysfunction (Table 4); therefore, dosage adjustments are not necessary for these patients with ceftriaxone dosages up to 2 grams per day. Ceftriaxone was not removed to any significant extent from the plasma by hemodialysis; in six of 26 dialysis patients, the elimination rate of ceftriaxone was markedly reduced.
Table 4 Average Pharmacokinetic Parameters of Ceftriaxone in Humans Subject Group Elimination Half-Life (hr) Plasma Clearance (L/hr) Volume of Distribution (L) Healthy Subjects 5.8 to 8.7 0.58 to 1.45 5.8 to 13.5 Elderly Subjects (mean age, 70.5 yr) 8.9 0.83 10.7 Patients With Renal Impairment   Hemodialysis Patients (0 to 5 mL/min) Creatinine clearance. 14.7 0.65 13.7   Severe (5 to 15 mL/min) 15.7 0.56 12.5   Moderate (16 to 30 mL/min) 11.4 0.72 11.8   Mild (31 to 60 mL/min) 12.4 0.70 13.3 Patients With Liver Disease 8.8 1.1 13.6
The elimination of ceftriaxone is not altered when ceftriaxone is co-administered with probenecid.
Pharmacokinetics in the Middle Ear Fluid
In one study, total ceftriaxone concentrations (bound and unbound) were measured in middle ear fluid obtained during the insertion of tympanostomy tubes in 42 pediatric patients with otitis media. Sampling times were from 1 to 50 hours after a single intramuscular injection of 50 mg/kg of ceftriaxone. Mean (±SD) ceftriaxone levels in the middle ear reached a peak of 35 (±12) mcg/mL at 24 hours, and remained at 19 (±7) mcg/mL at 48 hours. Based on middle ear fluid ceftriaxone concentrations in the 23 to 25 hour and the 46 to 50 hour sampling time intervals, a half-life of 25 hours was calculated. Ceftriaxone is highly bound to plasma proteins. The extent of binding to proteins in the middle ear fluid is unknown.
Interaction with Calcium
Two in vitro studies, one using adult plasma and the other neonatal plasma from umbilical cord blood have been carried out to assess interaction of ceftriaxone and calcium. Ceftriaxone concentrations up to 1 mM (in excess of concentrations achieved in vivo following administration of 2 grams ceftriaxone infused over 30 minutes) were used in combination with calcium concentrations up to 12 mM (48 mg/dL). Recovery of ceftriaxone from plasma was reduced with calcium concentrations of 6 mM (24 mg/dL) or higher in adult plasma or 4 mM (16 mg/dL) or higher in neonatal plasma. This may be reflective of ceftriaxone-calcium precipitation.
Microbiology
Mechanism of Action
Ceftriaxone is a bactericidal agent that acts by inhibition of bacterial cell wall synthesis. Ceftriaxone has activity in the presence of some beta-lactamases, both penicillinases and cephalosporinases, of Gram-negative and Gram-positive bacteria.
Mechanism of Resistance
Resistance to ceftriaxone is primarily through hydrolysis by beta-lactamase, alteration of penicillin-binding proteins (PBPs), and decreased permeability.
Interaction with Other Antimicrobials
In an in vitro study antagonistic effects have been observed with the combination of chloramphenicol and ceftriaxone.
Ceftriaxone has been shown to be active against most isolates of the following bacteria, both in vitro and in clinical infections as described in the INDICATIONS AND USAGE section:
- Gram-negative bacteria Acinetobacter calcoaceticusEnterobacter aerogenesEnterobacter cloacaeEscherichia coliHaemophilus influenzaeHaemophilus parainfluenzaeKlebsiella oxytocaKlebsiella pneumoniaeMoraxella catarrhalisMorganella morganiiNeisseria gonorrhoeaeNeisseria meningitidisProteus mirabilisProteus vulgarisPseudomonas aeruginosaSerratia marcescens
- Gram-positive bacteria Staphylococcus aureusStaphylococcus epidermidisStreptococcus pneumoniaeStreptococcus pyogenes Viridans group streptococci
- Anaerobic bacteria Bacteroides fragilis Clostridium species Peptostreptococcus species
The following in vitro data are available, but their clinical significance is unknown. At least 90 percent of the following microorganisms exhibit an in vitro minimum inhibitory concentration (MIC) less than or equal to the susceptible breakpoint for ceftriaxone. However, the efficacy of ceftriaxone in treating clinical infections due to these microorganisms has not been established in adequate and well-controlled clinical trials.
- Gram-negative bacteria Citrobacter diversusCitrobacter freundiiProvidencia species (including Providencia rettgeri) Salmonella species (including Salmonella typhi) Shigella species
- Gram-positive bacteria Streptococcus agalactiae
- Anaerobic bacteria Porphyromonas (Bacteroides) melaninogenicusPrevotella (Bacteroides) bivius
Susceptibility Testing
For specific information regarding susceptibility test interpretive criteria and associated test methods and quality control standards recognized by FDA for this drug, please see: https://www.fda.gov/STIC.
Indications And Usage
Before instituting treatment with Ceftriaxone for Injection appropriate specimens should be obtained for isolation of the causative organism and for determination of its susceptibility to the drug. Therapy may be instituted prior to obtaining results of susceptibility testing.
To reduce the development of drug-resistant bacteria and maintain the effectiveness of Ceftriaxone for Injection and other antibacterial drugs, Ceftriaxone for Injection should be used only to treat or prevent infections that are proven or strongly suspected to be caused by susceptible bacteria. When culture and susceptibility information are available, they should be considered in selecting or modifying antibacterial therapy. In the absence of such data, local epidemiology and susceptibility patterns may contribute to the empiric selection of therapy. Ceftriaxone for Injection is indicated for the treatment of the following infections when caused by susceptible organisms:
LOWER RESPIRATORY TRACT INFECTIONS
Caused by Streptococcus pneumoniae, Staphylococcus aureus, Haemophilus influenzae, Haemophilus parainfluenzae, Klebsiella pneumoniae, Escherichia coli, Enterobacter aerogenes, Proteus mirabilis or Serratia marcescens.
ACUTE BACTERIAL OTITIS MEDIA
Caused by Streptococcus pneumoniae, Haemophilus influenzae (including beta-lactamase producing strains) or Moraxella catarrhalis (including beta-lactamase producing strains).
NOTE: In one study lower clinical cure rates were observed with a single dose of ceftriaxone for injection compared to 10 days of oral therapy. In a second study comparable cure rates were observed between single dose Ceftriaxone for Injection and the comparator. The potentially lower clinical cure rate of Ceftriaxone for Injection should be balanced against the potential advantages of parenteral therapy (see CLINICAL STUDIES ).
SKIN AND SKIN STRUCTURE INFECTIONS
Caused by Staphylococcus aureus, Staphylococcus epidermidis, Streptococcus pyogenes, Viridans group streptococci, Escherichia coli, Enterobacter cloacae, Klebsiella oxytoca, Klebsiella pneumoniae, Proteus mirabilis, Morganella morganii,Efficacy for this organism in this organ system was studied in fewer than ten infections. Pseudomonas aeruginosa, Serratia marcescens, Acinetobacter calcoaceticus, Bacteroides fragilisor Peptostreptococcus species.
URINARY TRACT INFECTIONS (complicated and uncomplicated)
Caused by Escherichia coli, Proteus mirabilis, Proteus vulgaris, Morganella morganii or Klebsiella pneumoniae.
UNCOMPLICATED GONORRHEA (cervical/urethral and rectal)
Caused by Neisseria gonorrhoeae, including both penicillinase- and nonpenicillinase-producing strains, and pharyngeal gonorrhea caused by nonpenicillinase-producing strains of Neisseria gonorrhoeae.
PELVIC INFLAMMATORY DISEASE
Caused by Neisseria gonorrhoeae. Ceftriaxone sodium, like other cephalosporins, has no activity against Chlamydia trachomatis. Therefore, when cephalosporins are used in the treatment of patients with pelvic inflammatory disease and Chlamydia trachomatis is one of the suspected pathogens, appropriate antichlamydial coverage should be added.
BACTERIAL SEPTICEMIA
Caused by Staphylococcus aureus, Streptococcus pneumoniae, Escherichia coli, Haemophilus influenzae or Klebsiella pneumoniae.
BONE AND JOINT INFECTIONS
Caused by Staphylococcus aureus, Streptococcus pneumoniae, Escherichia coli, Proteus mirabilis, Klebsiella pneumoniae or Enterobacter species.
INTRA-ABDOMINAL INFECTIONS
Caused by Escherichia coli, Klebsiella pneumoniae, Bacteroides fragilis, Clostridium species (Note: most strains of Clostridium difficile are resistant) or Peptostreptococcus species.
MENINGITIS
Caused by Haemophilus influenzae, Neisseria meningitidis or Streptococcus pneumoniae. Ceftriaxone for Injection has also been used successfully in a limited number of cases of meningitis and shunt infection caused by Staphylococcus epidermidisand Escherichia coli.
SURGICAL PROPHYLAXIS
The preoperative administration of a single 1 gram dose of Ceftriaxone for Injection may reduce the incidence of postoperative infections in patients undergoing surgical procedures classified as contaminated or potentially contaminated (e.g., vaginal or abdominal hysterectomy or cholecystectomy for chronic calculous cholecystitis in high-risk patients, such as those over 70 years of age, with acute cholecystitis not requiring therapeutic antimicrobials, obstructive jaundice or common duct bile stones) and in surgical patients for whom infection at the operative site would present serious risk (e.g., during coronary artery bypass surgery). Although Ceftriaxone for Injection has been shown to have been as effective as cefazolin in the prevention of infection following coronary artery bypass surgery, no placebo-controlled trials have been conducted to evaluate any cephalosporin antibiotic in the prevention of infection following coronary artery bypass surgery.
When administered prior to surgical procedures for which it is indicated, a single 1 gram dose of Ceftriaxone for Injection provides protection from most infections due to susceptible organisms throughout the course of the procedure.
Contraindications
Hypersensitivity
Ceftriaxone for injection is contraindicated in patients with known hypersensitivity to ceftriaxone, any of its excipients or to any other cephalosporin. Patients with previous hypersensitivity reactions to penicillin and other beta lactam antibacterial agents may be at greater risk of hypersensitivity to ceftriaxone (see WARNINGS – Hypersensitivity ).
Neonates
Premature neonates
Ceftriaxone for injection is contraindicated in premature neonates up to a postmenstrual age of 41 weeks (gestational age + chronological age).
Hyperbilirubinemic neonates
Hyperbilirubinemic neonates should not be treated with ceftriaxone for injection. Ceftriaxone can displace bilirubin from its binding to serum albumin, leading to a risk of bilirubin encephalopathy in these patients.
Neonates Requiring Calcium Containing IV Solutions
Ceftriaxone for injection is contraindicated in neonates (≤ 28 days) if they require (or are expected to require) treatment with calcium-containing IV solutions, including continuous calcium-containing infusions such as parenteral nutrition because of the risk of precipitation of ceftriaxone for injection-calcium (see CLINICAL PHARMACOLOGY , WARNINGS and DOSAGE AND ADMINISTRATION ).
Cases of fatal outcomes in which a crystalline material was observed in the lungs and kidneys at autopsy have been reported in neonates receiving ceftriaxone for injection and calcium-containing fluids.
In some of these cases, the same intravenous infusion line was used for both ceftriaxone for injection and calcium-containing fluids and in some a precipitate was observed in the intravenous infusion line. There have been no similar reports in patients other than neonates.
Lidocaine
Intravenous administration of ceftriaxone solutions containing lidocaine is contraindicated. When lidocaine solution is used as a solvent with ceftriaxone for intramuscular injection, exclude all contraindications to lidocaine. Refer to the prescribing information of lidocaine.
Warnings
Hypersensitivity Reactions
Before therapy with ceftriaxone for injection is instituted, careful inquiry should be made to determine whether the patient has had previous hypersensitivity reactions to cephalosporins, penicillins and other beta-lactam agents or other drugs. This product should be given cautiously to penicillin and other beta-lactam agent-sensitive patients. Antibacterial drugs should be administered with caution to any patient who has demonstrated some form of allergy, particularly to drugs. Serious acute hypersensitivity reactions may require the use of subcutaneous epinephrine and other emergency measures.
As with all beta-lactam antibacterial agents, serious and occasionally fatal hypersensitivity reactions (i.e., anaphylaxis) have been reported. In case of severe hypersensitivity reactions, treatment with ceftriaxone must be discontinued immediately and adequate emergency measures must be initiated.
Interaction with Calcium-Containing Products
Do not use diluents containing calcium, such as Ringer's solution or Hartmann's solution, to reconstitute ceftriaxone vials or to further dilute a reconstituted vial for IV administration because a precipitate can form. Precipitation of ceftriaxone-calcium can also occur when ceftriaxone is mixed with calcium-containing solutions in the same IV administration line. Ceftriaxone must not be administered simultaneously with calcium-containing IV solutions, including continuous calcium-containing infusions such as parenteral nutrition via a Y-site. However, in patients other than neonates, ceftriaxone and calcium-containing solutions may be administered sequentially of one another if the infusion lines are thoroughly flushed between infusions with a compatible fluid. In vitro studies using adult and neonatal plasma from umbilical cord blood demonstrated that neonates have an increased risk of precipitation of ceftriaxone-calcium (see CLINICAL PHARMACOLOGY , CONTRAINDICATIONS and DOSAGE AND ADMINISTRATION ).
Neurological Adverse Reactions
Serious neurological adverse reactions have been reported during postmarketing surveillance with ceftriaxone use. These reactions include encephalopathy (disturbance of consciousness including somnolence, lethargy, and confusion), seizures, myoclonus, and non-convulsive status epilepticus (see ADVERSE REACTIONS ). Some cases occurred in patients with severe renal impairment who did not receive appropriate dosage adjustment. However, in other cases, neurological adverse reactions occurred in patients receiving an appropriate dosage adjustment. The neurological adverse reactions were reversible and resolved after discontinuation. If neurological adverse reactions associated with Ceftriaxone for Injection therapy occur, discontinue Ceftriaxone for Injection and institute appropriate supportive measures. Make appropriate dosage adjustments in patients with severe renal impairment (see DOSAGE AND ADMINISTRATION ).
Associated Diarrhea
Clostridium difficile associated diarrhea (CDAD) has been reported with use of nearly all antibacterial agents, including ceftriaxone, and may range in severity from mild diarrhea to fatal colitis. Treatment with antibacterial agents alters the normal flora of the colon leading to overgrowth of C. difficile.
C. difficile produces toxins A and B which contribute to the development of CDAD. Hypertoxin producing strains of C. difficile cause increased morbidity and mortality, as these infections can be refractory to antimicrobial therapy and may require colectomy. CDAD must be considered in all patients who present with diarrhea following antibiotic use. Careful medical history is necessary since CDAD has been reported to occur over two months after the administration of antibacterial agents.
If CDAD is suspected or confirmed, ongoing antibiotic use not directed against C. difficile may need to be discontinued. Appropriate fluid and electrolyte management, protein supplementation, antibiotic treatment of C. difficile, and surgical evaluation should be instituted as clinically indicated.
Hemolytic Anemia
An immune mediated hemolytic anemia has been observed in patients receiving cephalosporin class antibacterials including ceftriaxone. Severe cases of hemolytic anemia, including fatalities, have been reported during treatment in both adults and children. If a patient develops anemia while on ceftriaxone, the diagnosis of a cephalosporin associated anemia should be considered and ceftriaxone stopped until the etiology is determined.
Precautions
Development of Drug-resistant Bacteria
Prescribing ceftriaxone in the absence of a proven or strongly suspected bacterial infection or a prophylactic indication is unlikely to provide benefit to the patient and increases the risk of the development of drug-resistant bacteria. Prolonged use of ceftriaxone may result in overgrowth of nonsusceptible organisms. Careful observation of the patient is essential. If superinfection occurs during therapy, appropriate measures should be taken.
Patients with Renal or Hepatic Impairment
Ceftriaxone is excreted via both biliary and renal excretion (see CLINICAL PHARMACOLOGY ). Therefore, patients with renal failure normally require no adjustment in dosage when usual doses of ceftriaxone are administered.
Dosage adjustments should not be necessary in patients with hepatic dysfunction; however, in patients with both hepatic dysfunction and significant renal disease, caution should be exercised and the ceftriaxone dosage should not exceed 2 grams daily.
Ceftriaxone is not removed by peritoneal- or hemodialysis. In patients undergoing dialysis no additional supplementary dosing is required following the dialysis. In patients with both severe renal and hepatic dysfunction, close clinical monitoring for safety and efficacy is advised.
Effect on Prothrombin Time
Alterations in prothrombin times have occurred in patients treated with ceftriaxone. Monitor prothrombin time during ceftriaxone treatment in patients with impaired vitamin K synthesis or low vitamin K stores (e.g., chronic hepatic disease and malnutrition). Vitamin K administration (10 mg weekly) may be necessary if the prothrombin time is prolonged before or during therapy.
Concomitant use of ceftriaxone with Vitamin K antagonists may increase the risk of bleeding. Coagulation parameters should be monitored frequently, and the dose of the anticoagulant adjusted accordingly, both during and after treatment with ceftriaxone (see ADVERSE REACTIONS ).
Gallbladder Pseudolithiasis
Ceftriaxone-calcium precipitates in the gallbladder have been observed in patients receiving ceftriaxone. These precipitates appear on sonography as an echo without acoustical shadowing suggesting sludge or as an echo with acoustical shadowing which may be misinterpreted as gallstones. The probability of such precipitates appears to be greatest in pediatric patients. Patients may be asymptomatic or may develop symptoms of gallbladder disease. The condition appears to be reversible upon discontinuation of ceftriaxone sodium and institution of conservative management. Discontinue ceftriaxone sodium in patients who develop signs and symptoms suggestive of gallbladder disease and/or the sonographic findings described above.
Urolithiasis and Post-Renal Acute Renal Failure
Ceftriaxone-calcium precipitates in the urinary tract have been observed in patients receiving ceftriaxone and may be detected as sonographic abnormalities. The probability of such precipitates appears to be greatest in pediatric patients. Patients may be asymptomatic or may develop symptoms of urolithiasis, and ureteral obstruction and post-renal acute renal failure. The condition appears to be reversible upon discontinuation of ceftriaxone sodium and institution of appropriate management. Ensure adequate hydration in patients receiving ceftriaxone. Discontinue ceftriaxone in patients who develop signs and symptoms suggestive of urolithiasis, oliguria or renal failure and/or the sonographic findings described above.
Pancreatitis
Cases of pancreatitis, possibly secondary to biliary obstruction, have been reported in patients treated with ceftriaxone. Most patients presented with risk factors for biliary stasis and biliary sludge (preceding major therapy, severe illness, total parenteral nutrition). A cofactor role of ceftriaxone-related biliary precipitation cannot be ruled out.
Information for Patients
- Advise patients that neurological adverse reactions could occur with Ceftriaxone for Injection use. Instruct patients or their caregivers to inform their healthcare provider at once of any neurological signs and symptoms, including encephalopathy (disturbance of consciousness including somnolence, lethargy, and confusion), seizures, myoclonus, and nonconvulsive status epilepticus, for immediate treatment, or discontinuation of Ceftriaxone for Injection (see WARNINGS AND PRECAUTIONS ).
- Patients should be counseled that antibacterial drugs including ceftriaxone should only be used to treat bacterial infections. They do not treat viral infections (e.g., common cold).
- When ceftriaxone is prescribed to treat a bacterial infection, patients should be told that although it is common to feel better early in the course of therapy, the medication should be taken exactly as directed. Skipping doses or not completing the full course of therapy may (1) decrease the effectiveness of the immediate treatment and (2) increase the likelihood that bacteria will develop resistance and will not be treatable by ceftriaxone or other antibacterial drugs in the future.
- Diarrhea is a common problem caused by antibiotics which usually ends when the antibiotic is discontinued. Sometimes after starting treatment with antibiotics, patients can develop watery and bloody stools (with or without stomach cramps and fever) even as late as two or more months after having taken the last dose of the antibiotic. If this occurs, patients should contact their physician as soon as possible.
Carcinogenesis, Mutagenesis, Impairment of Fertility
Carcinogenesis
Considering the maximum duration of treatment and the class of the compound, carcinogenicity studies with ceftriaxone in animals have not been performed. The maximum duration of animal toxicity studies was 6 months.
Mutagenesis
Genetic toxicology tests included the Ames test, a micronucleus test and a test for chromosomal aberrations in human lymphocytes cultured in vitro with ceftriaxone. Ceftriaxone showed no potential for mutagenic activity in these studies.
Impairment of Fertility
Ceftriaxone produced no impairment of fertility when given intravenously to rats at daily doses up to 586 mg/kg/day, approximately 20 times the recommended clinical dose of 2 grams/day.
Pregnancy
Teratogenic Effects
Reproductive studies have been performed in mice and rats at doses up to 20 times the usual human dose and have no evidence of embryotoxicity, fetotoxicity or teratogenicity. In primates, no embryotoxicity or teratogenicity was demonstrated at a dose approximately 3 times the human dose.
There are, however, no adequate and well-controlled studies in pregnant women. Because animal reproductive studies are not always predictive of human response, this drug should be used during pregnancy only if clearly needed.
Nonteratogenic Effects
In rats, in the Segment I (fertility and general reproduction) and Segment III (perinatal and postnatal) studies with intravenously administered ceftriaxone, no adverse effects were noted on various reproductive parameters during gestation and lactation, including postnatal growth, functional behavior and reproductive ability of the offspring, at doses of 586 mg/kg/day or less.
Nursing Mothers
Low concentrations of ceftriaxone are excreted in human milk. Caution should be exercised when ceftriaxone is administered to a nursing woman.
Pediatric Use
Safety and effectiveness of ceftriaxone in neonates, infants and pediatric patients have been established for the dosages described in the DOSAGE AND ADMINISTRATION section. In vitro studies have shown that ceftriaxone, like some other cephalosporins, can displace bilirubin from serum albumin. Ceftriaxone should not be administered to hyperbilirubinemic neonates, especially prematures (see CONTRAINDICATIONS ).
Geriatric Use
Of the total number of subjects in clinical studies of ceftriaxone, 32% were 60 and over. No overall differences in safety or effectiveness were observed between these subjects and younger subjects, and other reported clinical experience has not identified differences in responses between the elderly and younger patients, but greater sensitivity of some older individuals cannot be ruled out.
The pharmacokinetics of ceftriaxone were only minimally altered in geriatric patients compared to healthy adult subjects and dosage adjustments are not necessary for geriatric patients with ceftriaxone dosages up to 2 grams per day provided there is no severe renal and hepatic impairment (see CLINICAL PHARMACOLOGY ).
Influence on Diagnostic Tests
In patients treated with ceftriaxone the Coombs' test may become positive. Ceftriaxone, like other antibacterial drugs, may result in positive test results for galactosemia.
Nonenzymatic methods for the glucose determination in urine may give false-positive results. For this reason, urine-glucose determination during therapy with ceftriaxone should be done enzymatically.
The presence of ceftriaxone may falsely lower estimated blood glucose values obtained with some blood glucose monitoring systems. Please refer to instructions for use for each system. Alternative testing methods should be used if necessary.
Adverse Reactions
Ceftriaxone is generally well tolerated. In clinical trials, the following adverse reactions, which were considered to be related to ceftriaxone therapy or of uncertain etiology, were observed:
Local reactions
Pain, induration and tenderness was 1% overall. Phlebitis was reported in <1% after IV administration. The incidence of warmth, tightness or induration was 17% (3/17) after IM administration of 350 mg/mL and 5% (1/20) after IM administration of 250 mg/mL.
General disorders and administration site conditions
Injection site pain (0.6%).
Hypersensitivity
Rash (1.7%). Less frequently reported (<1%) were pruritus, fever or chills.
Infections and infestations
Genital fungal infection (0.1%).
Hematologic
Eosinophilia (6%), thrombocytosis (5.1%) and leukopenia (2.1%). Less frequently reported (<1%) were anemia, hemolytic anemia, neutropenia, lymphopenia, thrombocytopenia and prolongation of the prothrombin time.
Blood and lymphatic disorders
Granulocytopenia (0.9%), coagulopathy (0.4%).
Gastrointestinal
Diarrhea/loose stools (2.7%). Less frequently reported (<1%) were nausea or vomiting, and dysgeusia. The onset of pseudomembranous colitis symptoms may occur during or after antibacterial treatment (see WARNINGS ).
Hepatic
Elevations of aspartate aminotransferase (AST) (3.1%) or alanine aminotransferase (ALT) (3.3%). Less frequently reported (<1%) were elevations of alkaline phosphatase and bilirubin.
Renal
Elevations of the BUN (1.2%). Less frequently reported (<1%) were elevations of creatinine and the presence of casts in the urine.
Central nervous system
Headache or dizziness were reported occasionally (<1%).
Genitourinary
Moniliasis or vaginitis were reported occasionally (<1%).
Miscellaneous
Diaphoresis and flushing were reported occasionally (<1%).
Investigations
Blood creatinine increased (0.6%).
Other rarely observed adverse reactions (<0.1%) include abdominal pain, agranulocytosis, allergic pneumonitis, anaphylaxis, basophilia, biliary lithiasis, bronchospasm, colitis, dyspepsia, epistaxis, flatulence, gallbladder sludge, glycosuria, hematuria, jaundice, leukocytosis, lymphocytosis, monocytosis, nephrolithiasis, palpitations, a decrease in the prothrombin time, renal precipitations, seizures, and serum sickness.
Postmarketing Experience
In addition to the adverse reactions reported during clinical trials, the following adverse experiences have been reported during clinical practice in patients treated with ceftriaxone. Data are generally insufficient to allow an estimate of incidence or to establish causation.
A small number of cases of fatal outcomes in which a crystalline material was observed in the lungs and kidneys at autopsy have been reported in neonates receiving ceftriaxone and calcium-containing fluids. In some of these cases, the same intravenous infusion line was used for both ceftriaxone and calcium-containing fluids and in some a precipitate was observed in the intravenous infusion line. At least one fatality has been reported in a neonate in whom ceftriaxone and calcium-containing fluids were administered at different time points via different intravenous lines; no crystalline material was observed at autopsy in this neonate. There have been no similar reports in patients other than neonates.
Gastrointestinal
Pancreatitis, stomatitis and glossitis.
Genitourinary
Oliguria, ureteric obstruction, post-renal acute renal failure.
Dermatologic
Exanthema, allergic dermatitis, urticaria, edema; acute generalized exanthematous pustulosis (AGEP) and isolated cases of severe cutaneous adverse reactions (erythema multiforme, Stevens-Johnson syndrome or Lyell's syndrome/toxic epidermal necrolysis) have been reported.
Hematological changes
Isolated cases of agranulocytosis (< 500/mm3) have been reported, most of them after 10 days of treatment and following total doses of 20 grams or more.
Neurologic
Encephalopathy, seizures, myoclonus, and non-convulsive status epilepticus (see WARNINGS AND PRECAUTIONS ).
Other, Adverse Reactions
Symptomatic precipitation of ceftriaxone calcium salt in the gallbladder, kernicterus, oliguria, and anaphylactic or anaphylactoid reactions.
Cephalosporin Class Adverse Reactions
In addition to the adverse reactions uled above which have been observed in patients treated with ceftriaxone, the following adverse reactions and altered laboratory test results have been reported for cephalosporin class antibiotics:
Adverse Reactions
Allergic reactions, drug fever, serum sickness-like reaction, renal dysfunction, toxic nephropathy, reversible hyperactivity, hypertonia, hepatic dysfunction including cholestasis, aplastic anemia, hemorrhage, and superinfection.
Altered Laboratory Tests
Positive direct Coombs' test, false-positive test for urinary glucose, and elevated LDH (see PRECAUTIONS ).
Several cephalosporins have been implicated in triggering seizures, particularly in patients with renal impairment when the dosage was not reduced (see DOSAGE AND ADMINISTRATION ). If seizures associated with drug therapy occur, the drug should be discontinued. Anticonvulsant therapy can be given if clinically indicated.
To report SUSPECTED ADVERSE REACTIONS, contact Xellia Pharmaceuticals USA, LLC at 1-833-295-6953 or FDA at 1-800‑FDA‑1088 or www.fda.gov/medwatch.
Overdosage
Ceftriaxone overdosage has been reported in patients with severe renal impairment. Reactions have included neurological outcomes, including encephalopathy, seizures, myoclonus, and non-convulsive status epilepticus. In the event of overdosage, discontinue Ceftriaxone for Injection therapy and provide general supportive treatment (see DOSAGE AND ADMINISTRATION and WARNINGS AND PRECAUTIONS ).
In the case of overdosage, drug concentration would not be reduced by hemodialysis or peritoneal dialysis. There is no specific antidote. Treatment of overdosage should be symptomatic.
Dosage And Administration
Ceftriaxone for injection may be administered intravenously or intramuscularly.
Do not use diluents containing calcium, such as Ringer's solution or Hartmann's solution, to reconstitute ceftriaxone for injection vials or to further dilute a reconstituted vial for IV administration because a precipitate can form. Precipitation of ceftriaxone for injection-calcium can also occur when ceftriaxone for injection is mixed with calcium-containing solutions in the same IV administration line.
Ceftriaxone for injection must not be administered simultaneously with calcium-containing IV solutions, including continuous calcium-containing infusions such as parenteral nutrition via a Y-site. However, in patients other than neonates, ceftriaxone for injection and calcium-containing solutions may be administered sequentially of one another if the infusion lines are thoroughly flushed between infusions with a compatible fluid (see WARNINGS ).
There have been no reports of an interaction between ceftriaxone for injection and oral calcium-containing products or interaction between intramuscular ceftriaxone for injection and calcium-containing products (IV or oral).
Neonates
Hyperbilirubinemic neonates, especially prematures, should not be treated with ceftriaxone for injection. Ceftriaxone for injection is contraindicated in premature neonates (see CONTRAINDICATIONS ).
Ceftriaxone for injection is contraindicated in neonates (≤ 28 days) if they require (or are expected to require) treatment with calcium-containing IV solutions, including continuous calcium-containing infusions such as parenteral nutrition because of the risk of precipitation of ceftriaxone-calcium (see CONTRAINDICATIONS ).
Intravenous doses should be given over 60 minutes in neonates to reduce the risk of bilirubin encephalopathy.
Pediatric patients
For the treatment of skin and skin structure infections, the recommended total daily dose is 50 to 75 mg/kg given once a day (or in equally divided doses twice a day). The total daily dose should not exceed 2 grams.
For the treatment of acute bacterial otitis media, a single intramuscular dose of 50 mg/kg (not to exceed 1 gram) is recommended (see INDICATIONS AND USAGE ).
For the treatment of serious miscellaneous infections other than meningitis, the recommended total daily dose is 50 to 75 mg/kg, given in divided doses every 12 hours. The total daily dose should not exceed 2 grams.
In the treatment of meningitis, it is recommended that the initial therapeutic dose be 100 mg/kg (not to exceed 4 grams). Thereafter, a total daily dose of 100 mg/kg/day (not to exceed 4 grams daily) is recommended. The daily dose may be administered once a day (or in equally divided doses every 12 hours). The usual duration of therapy is 7 to 14 days.
Adults
The usual adult daily dose is 1 to 2 grams given once a day (or in equally divided doses twice a day) depending on the type and severity of infection. The total daily dose should not exceed 4 grams.
If Chlamydia trachomatis is a suspected pathogen, appropriate antichlamydial coverage should be added, because ceftriaxone sodium has no activity against this organism.
For the treatment of uncomplicated gonococcal infections, a single intramuscular dose of 250 mg is recommended.
For preoperative use (surgical prophylaxis), a single dose of 1 gram administered intravenously 1/2 to 2 hours before surgery is recommended.
Generally, ceftriaxone for injection therapy should be continued for at least 2 days after the signs and symptoms of infection have disappeared. The usual duration of therapy is 4 to 14 days; in complicated infections, longer therapy may be required.
When treating infections caused by Streptococcus pyogenes, therapy should be continued for at least 10 days.
No dosage adjustment is necessary for patients with impairment of renal or hepatic function (see PRECAUTIONS ).
The dosages recommended for adults require no modification in elderly patients, up to 2 grams per day, provided there is no severe renal and hepatic impairment (see PRECAUTIONS ).
DIRECTIONS FOR USE
Intramuscular Administration
Reconstitute ceftriaxone for injection powder with the appropriate diluent (seeCOMPATIBILITY AND STABILITY ).
Inject diluent into vial, shake vial thoroughly to form solution. Withdraw entire contents of vial into syringe to equal total labeled dose.
After reconstitution, each 1 mL of solution contains approximately 250 mg or 350 mg equivalent of ceftriaxone for injection according to the amount of diluent indicated below. If required, more dilute solutions could be utilized. A 350 mg/mL concentration is not recommended for the 250 mg vial since it may not be possible to withdraw the entire contents.
As with all intramuscular preparations, ceftriaxone for injection should be injected well within the body of a relatively large muscle; aspiration helps to avoid unintentional injection into a blood vessel.
Vial Dosage Size Amount of Diluent to be Added 250 mg/mL 350 mg/mL 250 mg 0.9 mL — 500 mg 1.8 mL 1 mL 1 gram 3.6 mL 2.1 mL 2 gram 7.2 mL 4.2 mL Intravenous Administration
Ceftriaxone for injection should be administered intravenously by infusion over a period of 30 minutes, except in neonates where administration over 60 minutes is recommended to reduce the risk of bilirubin encephalopathy. Concentrations between 10 mg/mL and 40 mg/mL are recommended; however, lower concentrations may be used if desired. Reconstitute vials with an appropriate IV diluent (seeCOMPATIBILITY AND STABILITY ).
Vial Dosage Size Amount of Diluent to be Added 250 mg 2.4 mL 500 mg 4.8 mL 1 gram 9.6 mL 2 gram 19.2 mL
After reconstitution, each 1 mL of solution contains approximately 100 mg equivalent of ceftriaxone for injection. Withdraw entire contents and dilute to the desired concentration with the appropriate IV diluent.
COMPATIBILITY AND STABILITY
Do not use diluents containing calcium, such as Ringer's solution or Hartmann's solution, to reconstitute ceftriaxone for injection or to further dilute a reconstituted vial for IV administration. Particulate formation can result.
Ceftriaxone for injection has been shown to be compatible with Flagyl® IV (metronidazole hydrochloride). The concentration should not exceed 5 to 7.5 mg/mL metronidazole hydrochloride with ceftriaxone for injection 10 mg/mL as an admixture. The admixture is stable for 24 hours at room temperature only in 0.9% sodium chloride injection or 5% dextrose in water (D5W). No compatibility studies have been conducted with the Flagyl® IV RTU® (metronidazole) formulation or using other diluents. Metronidazole at concentrations greater than 8 mg/mL will precipitate. Do not refrigerate the admixture as precipitation will occur.
Vancomycin, amsacrine, aminoglycosides, and fluconazole are incompatible with ceftriaxone for injection in admixtures. When any of these drugs are to be administered concomitantly with ceftriaxone for injection by intermittent intravenous infusion, it is recommended that they be given sequentially, with thorough flushing of the intravenous lines (with one of the compatible fluids) between the administrations.
Ceftriaxone for injection solutions should not be physically mixed with or piggybacked into solutions containing other antimicrobial drugs or into diluent solutions other than those uled above, due to possible incompatibility (see WARNINGS ).
Ceftriaxone for injection sterile powder should be stored at 20° to 25°C (68° to 77°F) [see USP Controlled Room Temperature] and protected from light. After reconstitution, protection from normal light is not necessary. The color of solutions ranges from light yellow to amber, depending on the length of storage, concentration and diluent used.
Ceftriaxone for injection intramuscular solutions remain stable (loss of potency less than 10%) for the following time periods:
Storage Diluent Concentrationmg/mL Room Temp.(25°C) Refrigerated(4°C) Sterile Water for Injection 100250, 350 2 days24 hours 10 days3 days 0.9% Sodium Chloride Solution 100250, 350 2 days24 hours 10 days3 days 5% Dextrose Solution 100250, 350 2 days24 hours 10 days3 days Bacteriostatic Water + 0.9% Benzyl Alcohol 100250, 350 24 hours24 hours 10 days3 days 1% Lidocaine Solution (without epinephrine) 100250, 350 24 hours24 hours 10 days3 days
Ceftriaxone for injection intravenous solutions, at concentrations of 10, 20 and 40 mg/mL, remain stable (loss of potency less than 10%) for the following time periods stored in glass or PVC containers:
Storage Diluent Room Temp.(25°C) Refrigerated(4°C) Sterile Water for Injection 2 days 10 days 0.9% Sodium Chloride Solution 2 days 10 days 5% Dextrose Solution 2 days 10 days 10% Dextrose Solution 2 days 10 days 5% Dextrose + 0.9% Sodium Chloride Solution Data available for 10 to 40 mg/mL concentrations in this diluent in PVC containers only. 2 days Incompatible 5% Dextrose + 0.45% Sodium Chloride Solution 2 days Incompatible
The following intravenous ceftriaxone for injection solutions are stable at room temperature (25°C) for 24 hours, at concentrations between 10 mg/mL and 40 mg/mL: Sodium Lactate (PVC container), 10% Invert Sugar (glass container), 5% Sodium Bicarbonate (glass container), Freamine III (glass container), Normosol-M in 5% Dextrose (glass and PVC containers), Ionosol-B in 5% Dextrose (glass container), 5% Mannitol (glass container), 10% Mannitol (glass container).
After the indicated stability time periods, unused portions of solutions should be discarded.
NOTE: Parenteral drug products should be inspected visually for particulate matter before administration.
Ceftriaxone for injection reconstituted with 5% Dextrose or 0.9% Sodium Chloride solution at concentrations between 10 mg/mL and 40 mg/mL, and then stored in frozen state (-20°C) in PVC or polyolefin containers, remains stable for 26 weeks.
Frozen solutions of ceftriaxone for injection should be thawed at room temperature before use. After thawing, unused portions should be discarded. DO NOT REFREEZE.
Animal Pharmacology
Concretions consisting of the precipitated calcium salt of ceftriaxone have been found in the gallbladder bile of dogs and baboons treated with ceftriaxone.
These appeared as a gritty sediment in dogs that received 100 mg/kg/day for 4 weeks. A similar phenomenon has been observed in baboons but only after a protracted dosing period (6 months) at higher dose levels (335 mg/kg/day or more). The likelihood of this occurrence in humans is considered to be low, since ceftriaxone has a greater plasma half-life in humans, the calcium salt of ceftriaxone is more soluble in human gallbladder bile and the calcium content of human gallbladder bile is relatively low.
How Supplied
Ceftriaxone for Injection, USP is supplied as a sterile crystalline powder in glass vials as follows:
NDC Ceftriaxone for Injection, USP Package Factor 70594-094-02 250 mg equivalent of ceftriaxone in a Single-Dose Vial 25 vials per carton 70594-095-02 500 mg equivalent of ceftriaxone in a Single-Dose Vial 25 vials per carton 70594-096-02 1 gram equivalent of ceftriaxone in a Single-Dose Vial 25 vials per carton 70594-097-02 2 gram equivalent of ceftriaxone in a Single-Dose Vial 25 vials per carton
Ceftriaxone for Injection, USP is also supplied as a sterile crystalline powder in glass vials in a Pharmacy Bulk Package, NOT FOR DIRECT INFUSION as follows:
NDC Ceftriaxone for Injection, USP Package Factor 70594-098-01 10 gram equivalent of ceftriaxone in a Pharmacy Bulk Bottle 1 bottle per carton Storage Conditions
Ceftriaxone for Injection, USP sterile powder should be stored at 20° to 25°C (68° to 77°F). [See USP Controlled Room Temperature.] Protect from light.
Discard unused portion.
Sterile, Nonpyrogenic, Preservative-free.
The container closure is not made with natural rubber latex.
Clinical Studies
Clinical Trials in Pediatric Patients With Acute Bacterial Otitis Media
In two adequate and well-controlled U.S. clinical trials a single IM dose of ceftriaxone was compared with a 10 day course of oral antibiotic in pediatric patients between the ages of 3 months and 6 years. The clinical cure rates and statistical outcome appear in the table below:
Table 5 Clinical Efficacy in Pediatric Patients with Acute Bacterial Otitis Media Clinical Efficacy in Evaluable Population Study Day Ceftriaxone Single Dose Comparator – 10 Days of Oral Therapy 95% Confidence Interval Statistical Outcome Study 1 – U.S. amoxicillin/clavulanate Ceftriaxone is lower than control at study day 14 and 28. 14 74%(220/296) 82%(247/302) (-14.4%, -0.5%) 28 58%(167/288) 67%(200/297) (-17.5%, -1.2%) Study 2 – U.S.1 TMP-SMZ Ceftriaxone is equivalent to control at study day 14 and 28. 14 54%(113/210) 60%(124/206) (-16.4%, 3.6%) 28 35%(73/206) 45%(93/205) (-19.9%, 0.0%)
An open-label bacteriologic study of ceftriaxone without a comparator enrolled 108 pediatric patients, 79 of whom had positive baseline cultures for one or more of the common pathogens. The results of this study are tabulated as follows:
Week 2 and 4 Bacteriologic Eradication Rates in the Per Protocol Analysis in the Roche Bacteriologic Study by pathogen:
Table 6 Bacteriologic Eradication Rates by Pathogen Study Day 13 to 15 Study Day 30+2 Organism No. Analyzed No. Erad. (%) No. Analyzed No. Erad. (%) Streptococcus pneumoniae 38 32 (84) 35 25 (71) Haemophilus influenzae 33 28 (85) 31 22 (71) Moraxella catarrhalis 15 12 (80) 15 9 (60)
References
- Barnett ED, Teele DW, Klein JO, et al. Comparison of Ceftriaxone and Trimethoprim-Sulfamethoxazole for Acute Otitis Media. Pediatrics. Vol. 99, No. 1, January 1997.
Brands uled are the trademarks of their respective owners.
Mfd for Xellia Pharmaceuticals USA, LLCBuffalo Grove, IL 60089
Made in India
February 2022
3XTB03-00
Principal Display Panel - 250 Mg Vial Carton
NDC 70594-094-02Rx Only
Ceftriaxone for Injection, USP
250 mg per vial
For Intravenous or Intramuscular Use Each vial contains ceftriaxone sodium equivalent to 250 mg ceftriaxone
25 Single-Dose Vials
xellia PHARMACEUTICALS
Principal Display Panel - 500 Mg Vial Carton
NDC 70594-095-02Rx Only
Ceftriaxone for Injection, USP
500 mg per vial
For Intravenous or Intramuscular Use Each vial contains ceftriaxone sodium equivalent to 500 mg ceftriaxone
25 Single-Dose Vials
xellia PHARMACEUTICALS
Principal Display Panel - 1 Gram Vial Carton
NDC 70594-096-02Rx Only
Ceftriaxone for Injection, USP
1 gram per vial
For Intravenous or Intramuscular Use Each vial contains ceftriaxone sodium equivalent to 1 gram ceftriaxone
25 Single-Dose Vials
xellia PHARMACEUTICALS
Principal Display Panel - 2 Gram Vial Carton
NDC 70594-097-02Rx Only
Ceftriaxone for Injection, USP
2 gram per vial
For Intravenous or Intramuscular Use Each vial contains ceftriaxone sodium equivalent to 2 gram ceftriaxone
25 Single-Dose Vials
xellia PHARMACEUTICALS
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