Drug: Cefobid

CEFOBID® (sterile cefoperazone), formerly known as sterile cefoperazone sodium, contains cefoperazone as cefoperazone sodium. It is a semisynthetic, broad-spectrum cephalosporin antibacterial drug. Chemically, cefoperazone sodium is sodium (6R,7R)-7-[(R)-2-(4-ethyl-2,3dioxo-1-piperazinecarboxamido)-2-(p-hydroxyphenyl)- acetamido-3-[[(1-methyl-1H-tetrazol-5yl)thio]methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate. Its molecular formula is C25H26N9NaO8S2 with a molecular weight of 667.65. The structural formula is given below: CEFOBID (sterile cefoperazone) contains 34 mg sodium (1.5 mEq) per gram. CEFOBID is a white powder which is freely soluble in water. The pH of a 25% (w/v) freshly reconstituted solution varies between 4.5–6.5 and the solution ranges from colorless to straw yellow depending on the concentration. CEFOBID (sterile cefoperazone) in crystalline form is supplied in vials containing 1 g or 2 g cefoperazone as cefoperazone sodium for intravenous or intramuscular administration.Last reviewed on RxList: 3/30/2015
This monograph has been modified to include the generic and brand name in many instances.

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Clinical Trials Experience In clinical studies the following adverse effects were observed and were considered to be related to CEFOBID therapy or of uncertain etiology: Hypersensitivity As with all cephalosporins, hypersensitivity manifested by skin reactions (1 patient in 45), drug fever (1 in 260), or a change in Coombs' test (1 in 60) has been reported. These reactions are more likely to occur in patients with a history of allergies, particularly to penicillin. Hematology As with other beta-lactam antibacterial drugs, reversible neutropenia may occur with prolonged administration. Slight decreases in neutrophil count (1 patient in 50) have been reported. Decreased hemoglobins (1 in 20) or hematocrits (1 in 20) have been reported, which is consistent with published literature on other cephalosporins. Transient eosinophilia has occurred in 1 patient in 10. Hepatic Of 1285 patients treated with cefoperazone in clinical trials, one patient with a history of liver disease developed significantly elevated liver function enzymes during CEFOBID therapy. Clinical signs and symptoms of nonspecific hepatitis accompanied these increases. After CEFOBID therapy was discontinued, the patient's enzymes returned to pre-treatment levels and the symptomatology resolved. As with other antibacterial drugs that achieve high bile levels, mild transient elevations of liver function enzymes have been observed in 5–10% of the patients receiving CEFOBID therapy. The relevance of these findings, which were not accompanied by overt signs or symptoms of hepatic dysfunction, has not been established. Gastrointestinal Diarrhea or loose stools has been reported in 1 in 30 patients. Most of these experiences have been mild or moderate in severity and self-limiting in nature. In all cases, these symptoms responded to symptomatic therapy or ceased when cefoperazone therapy was stopped. Nausea and vomiting have been reported rarely. Symptoms of pseudomembranous colitis can appear during or for several weeks subsequent to antibacterial therapy (see WARNINGS). Renal Function Tests Transient elevations of the BUN (1 in 16) and serum creatinine (1 in 48) have been noted. Local Reactions CEFOBID is well tolerated following intramuscular administration. Occasionally, transient pain (1 in 140) may follow administration by this route. When CEFOBID is administered by intravenous infusion some patients may develop phlebitis (1 in 120) at the infusion site. Post-Marketing Experience The following adverse reactions have been identified during post-approval use of CEFOBID. 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. Blood and Lymphatic System Disorders: Thrombocytopenia, hypoprothrombinaemia (See PRECAUTIONS) Immune System disorders: Anaphylactic reactions, including shock and fatal cases (See WARNINGS) Hepatobiliary Disorders: Jaundice, hepatic dysfunction Skin and Subcutaneous Tissue Disorders: Toxic epidermal necrolysis, Stevens Johnson syndrome, pruritus Vascular Disorders: Hemorrhage (See WARNINGS) Read the Cefobid (sterile cefoperazone) Side Effects Center for a complete guide to possible side effectsLearn More »

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The usual adult daily dose of CEFOBID (sterile cefoperazone) is 2 to 4 grams per day administered in equally divided doses every 12 hours. In severe infections or infections caused by less sensitive organisms, the total daily dose and/or frequency may be increased. Patients have been successfully treated with a total daily dosage of 6–12 grams divided into 2, 3 or 4 administrations ranging from 1.5 to 4 grams per dose. When treating infections caused by Streptococcus pyogenes, therapy should be continued for at least 10 days. If C. trachomatis is a suspected pathogen, appropriate anti-chlamydial coverage should be added, because cefoperazone has no activity against this organism. Solutions of CEFOBID and aminoglycoside should not be directly mixed, since there is a physical incompatibility between them. If combination therapy with CEFOBID and an aminoglycoside is contemplated (see INDICATIONS) this can be accomplished by sequential intermittent intravenous infusion provided that separate secondary intravenous tubing is used, and that the primary intravenous tubing is adequately irrigated with an approved diluent between doses. It is also suggested that CEFOBID be administered prior to the aminoglycoside. In vitro testing of the effectiveness of drug combination(s) is recommended. Reconstitution The following solutions may be used for the initial reconstitution of CEFOBID (sterile cefoperazone). Table 1: Solutions for Initial Reconstitution
5% Dextrose Injection (USP) 0.9% Sodium Chloride Injection (USP) 5% Dextrose and 0.9% Sodium Chloride Injection (USP) Normosol® M and 5% Dextrose Injection 5% Dextrose and 0.2% Sodium Chloride Injection (USP) Normosol® R 10% Dextrose Injection (USP) Sterile Water for Injection* Bacteriostatic Water for Injection [Benzyl Alcohol or Parabens] (USP)*†   * Not to be used as a vehicle for intravenous infusion.
† Preparations containing Benzyl Alcohol should not be used in neonates. General Reconstitution Procedures CEFOBID (sterile cefoperazone) for intravenous or intramuscular use may be initially reconstituted with any compatible solution mentioned above in Table 1. Solutions should be allowed to stand after reconstitution to allow any foaming to dissipate to permit visual inspection for complete solubilization. Vigorous and prolonged agitation may be necessary to solubilize CEFOBID in higher concentrations (above 333 mg cefoperazone/mL). The maximum solubility of CEFOBID (sterile cefoperazone) is approximately 475 mg cefoperazone/mL of compatible diluent. Preparation For Intravenous Use General: CEFOBID (sterile cefoperazone) concentrations between 2 mg/mL and 50 mg/mL are recommended for intravenous administration. Preparation of Vials: Vials of CEFOBID (sterile cefoperazone) may be initially reconstituted with a minimum of 2.8 mL per gram of cefoperazone of any compatible reconstituting solution appropriate for intravenous administration listed above in Table 1. For ease of reconstitution the use of 5 mL of compatible solution per gram of CEFOBID is recommended. The entire quantity of the resulting solution should then be withdrawn for further dilution and administration using any of the following vehicles for intravenous infusion: Table 2: Vehicles for Intravenous Infusion
5% Dextrose Injection (USP) Lactated Ringer’s Injection (USP) 5% Dextrose and Lactated Ringer’s Injection 0.9% Sodium Chloride Injection (USP) 5% Dextrose and 0.9% Sodium Chloride Injection (USP) Normosol® M and 5% Dextrose Injection 5% Dextrose and 0.2% Sodium Chloride Injection (USP) Normosol® R 10% Dextrose Injection (USP)   The resulting intravenous solution should be administered in one of the following manners: Intermittent Infusion: Solutions of CEFOBID should be administered over a 15–30 minute time period. Continuous Infusion: CEFOBID can be used for continuous infusion after dilution to a final concentration of between 2 and 25 mg cefoperazone per mL. Preparation For Intramuscular Injection Any suitable solution listed above may be used to prepare CEFOBID (sterile cefoperazone) for intramuscular injection. When concentrations of 250 mg/mL or more are to be administered, a lidocaine solution should be used. These solutions should be prepared using a combination of Sterile Water for Injection and 2% Lidocaine Hydrochloride Injection (USP) that approximates a 0.5% Lidocaine Hydrochloride Solution. A two-step dilution process as follows is recommended: First, add the required amount of Sterile Water for Injection and agitate until CEFOBID powder is completely dissolved. Second, add the required amount of 2% lidocaine and mix.   Final Cefoperazone Concentration Step 1 Volume of Sterile Water Step 2 Volume of 2% Lidoeaine Withdrawable Volume*† 1 g vial 333 mg/mL 2.0 mL 0.6 mL 3 mL 250 mg/mL 2.8 mL 1.0 mL 4 mL 2 g vial 333 mg/mL 3.8 mL 1.2 mL 6 mL 250 mg/mL 5.4 mL 1.8 mL 8 mL * There is sufficient excess present to allow for withdrawal of the stated volume.
† Final lidocaine concentration will approximate that obtained if a 0.5% Lidocaine Hydrochloride Solution is used as diluent. When a diluent other than Lidocaine HCl Injection (USP) is used reconstitute as follows:   Cefoperazone Concentration Volume of Diluent to be Added Withdrawable Volume* 1 g vial 333 mg/mL 2.6 mL 3 mL 250 mg/mL 3.8 mL 4 mL 2 g vial 333 mg/mL 5.0 mL 6 mL 250 mg/mL 7.2 mL 8 mL * There is sufficient excess present to allow for withdrawal of the stated volume. Storage And Stability CEFOBID (sterile cefoperazone) is to be stored at or below 25°C (77°F) and protected from light prior to reconstitution. After reconstitution, protection from light is not necessary. The following parenteral diluents and approximate concentrations of CEFOBID provide stable solutions under the following conditions for the indicated time periods. (After the indicated time periods, unused portions of solutions should be discarded.) Room Temperature (15°–25°C/59°–77°F)
24 Hours Approximate Concentrations Bacteriostatic Water for Injection [Benzyl Alcohol or Parabens] (USP) 300 mg/mL 5% Dextrose Injection (USP) 2 mg to 50 mg/mL 5% Dextrose and Lactated Ringer’s Injection 2 mg to 50 mg/mL 5% Dextrose and 0.9% Sodium Chloride Injection (USP) 2 mg to 50 mg/mL 5% Dextrose and 0.2% Sodium Chloride Injection (USP) 2 mg to 50 mg/mL 10% Dextrose Injection (USP) 2 mg to 50 mg/mL Lactated Ringer’s Injection (USP) 2 mg/mL 0.5% Lidocaine Hydrochloride Injection (USP) 300 mg/mL 0.9% Sodium Chloride Injection (USP) 2 mg to 300 mg/mL Normosol® M and 5% Dextrose Injection 2 mg to 50 mg/mL Normosol® R 2 mg to 50 mg/mL Sterile Water for Injection 300 mg/mL Reconstituted CEFOBID solutions may be stored in glass or plastic syringes, or in glass or flexible plastic parenteral solution containers.   Refrigerator Temperature (2°–8°C/36°–46°F)
5 Days Approximate Concentrations Bacteriostatic Water for Injection [Benzyl Alcohol or Parabens] (USP) 300 mg/mL 5% Dextrose Injection (USP) 2 mg to 50 mg/mL 5% Dextrose and 0.9% Sodium Chloride Injection (USP) 2 mg to 50 mg/mL 5% Dextrose and 0.2% Sodium Chloride Injection (USP) 2 mg to 50 mg/mL Lactated Ringer’s Injection (USP) 2 mg/mL 0.5% Lidocaine Hydrochloride Injection (USP) 300 mg/mL 0.9% Sodium Chloride Injection (USP) 2 mg to 300 mg/mL Normosol® M and 5% Dextrose Injection 2 mg to 50 mg/mL Normosol® R 2 mg to 50 mg/mL Sterile Water for Injection 300 mg/mL Reconstituted CEFOBID solutions may be stored in glass or plastic syringes, or in plastic parenteral solution containers. glass or flexible Reconstituted CEFOBID solutions may be stored in glass or plastic syringes, or in glass or flexible plastic parenteral solution containers. Freezer Temperature (–20° to –10°C/–4° to 14°F)
Freezer Temperature (-20° to -10°C/-4° to 14°F) 3 Weeks Approximate Concentrations 5% Dextrose Injection (USP) 50 mg/mL 5% Dextrose and 0.9% Sodium Chloride Injection (USP) 2 mg/mL 5% Dextrose and 0.2% Sodium Chloride Injection (USP) 2 mg/mL 5 Weeks 0.9% Sodium Chloride Injection (USP) 300 mg/mL Sterile Water for Injection 300 mg/mL Frozen samples should be thawed at room temperature before use. After thawing, unused portions should be discarded. Do not refreeze.

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Drug/Laboratory Test Interactions A false-positive reaction for glucose in the urine may occur with Benedict's or Fehling's solution.Last reviewed on RxList: 3/30/2015
This monograph has been modified to include the generic and brand name in many instances.

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To reduce the development of drug-resistant bacteria and maintain the effectiveness of CEFOBID and other antibacterial drugs, CEFOBID should be used only to treat 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. CEFOBID is indicated for the treatment of the following infections when caused by susceptible organisms: Respiratory Tract Infections caused by S. pneumoniae, H. influenzae, S. aureus (penicillinase and non-penicillinase producing strains), S. pyogenes* (Group A beta-hemolytic streptococci), P. aeruginosa, Klebsiella pneumoniae, E. coli, Proteus mirabilis, and Enterobacter species. Peritonitis and Other Intra-abdominal Infections caused by E. coli, P. aeruginosa,* and anaerobic gram-negative bacilli (including Bacteroides fragilis). Bacterial Septicemia caused by S. pneumoniae, S. agalactiae,* S. aureus, Pseudomonas aeruginosa,* E. coli, Klebsiella spp.,* Klebsiella pneumoniae,* Proteus species* (indole-positive and indole-negative), Clostridium spp.* and anaerobic gram-positive cocci.* Infections of the Skin and Skin Structures caused by S. aureus (penicillinase and non-penicillinase producing strains), S. pyogenes,* and P. aeruginosa. Pelvic Inflammatory Disease, Endometritis, and Other Infections of the Female Genital Tract caused by N. gonorrhoeae, S. epidermidis,* S. agalactiae, E. coli, Clostridium spp.,* Bacteroides species (including Bacteroides fragilis), and anaerobic gram-positive cocci. Cefobid® has no activity against Chlamydia trachomatis. Therefore, when Cefobid is used in the treatment of patients with pelvic inflammatory disease and C. trachomatis is one of the suspected pathogens, appropriate anti-chlamydial coverage should be added. Urinary Tract Infections caused by Escherichia coli and Pseudomonas aeruginosa. Enterococcal Infections: Although cefoperazone has been shown to be clinically effective in the treatment of infections caused by enterococci in cases of peritonitis and other intra-abdominal infections, infections of the skin and skin structures, pelvic inflammatory disease, endometritis and other infections of the female genital tract, and urinary tract infections,* the majority of clinical isolates of enterococci tested are not susceptible to cefoperazone but fall just at or in the intermediate zone of susceptibility, and are moderately resistant to cefoperazone. However, in vitro susceptibility testing may not correlate directly with in vivo results. Despite this, cefoperazone therapy has resulted in clinical cures of enterococcal infections, chiefly in polymicrobial infections. Cefoperazone should be used in enterococcal infections with care and at doses that achieve satisfactory serum levels of cefoperazone. * Efficacy against this organism in this organ system was studied in fewer than 10 infections. Combination Therapy Synergy between CEFOBID and aminoglycosides has been demonstrated with many gram-negative bacilli. However, such enhanced activity of these combinations is not predictable. If such therapy is considered, in vitro susceptibility tests should be performed to determine the activity of the drugs in combination, and renal function should be monitored carefully. (See PRECAUTIONS, and DOSAGE AND ADMINISTRATION sections.)

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CEFOBID is contraindicated in patients with known allergy to the cephalosporin-class of antibacterial drugs.Last reviewed on RxList: 3/30/2015
This monograph has been modified to include the generic and brand name in many instances.

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No information provided.

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CEFOBID® (sterile cefoperazone) is available in vials containing cefoperazone sodium equivalent to 1 g cefoperazone x 10 (NDC 0049-1201-83) and 2 g cefoperazone x 10 (NDC 0049-1202-83) for intramuscular and intravenous administration. CEFOBID® (sterile cefoperazone) is available in 10 g (NDC 0049-1219-28) Pharmacy Bulk Package for intravenous administration. Distributed by: Roerig, Division of Pfizer Inc., NY, NY 10017. Revised March 2015 Last reviewed on RxList: 3/30/2015
This monograph has been modified to include the generic and brand name in many instances.

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General Prescribing CEFOBID in the absence of a proven or strongly suspected bacterial infection is unlikely to provide benefit to the patient and increases the risk of the development of drug-resistant bacteria. Although transient elevations of the BUN and serum creatinine have been observed, CEFOBID alone does not appear to cause significant nephrotoxicity. However, concomitant administration of aminoglycosides and other cephalosporins has caused nephrotoxicity. CEFOBID is extensively excreted in bile. The serum half-life of CEFOBID is increased 2–4 fold in patients with hepatic disease and/or biliary obstruction. In general, total daily dosage above 4 g should not be necessary in such patients. If higher dosages are used, serum concentrations should be monitored. Because renal excretion is not the main route of elimination of CEFOBID (see CLINICAL PHARMACOLOGY), patients with renal failure require no adjustment in dosage when usual doses are administered. When high doses of CEFOBID are used, concentrations of drug in the serum should be monitored periodically. If evidence of accumulation exists, dosage should be decreased accordingly. The half-life of CEFOBID is reduced slightly during hemodialysis. Thus, dosing should be scheduled to follow a dialysis period. In patients with both hepatic dysfunction and significant renal disease, CEFOBID dosage should not exceed 1–2 g daily without close monitoring of serum concentrations. As with other antibacterial drugs, vitamin K deficiency has occurred rarely in patients treated with CEFOBID. The mechanism is probably related to the suppression of gut flora which normally synthesize this vitamin. Those at risk include patients with a poor nutritional status, malabsorption states (e.g., cystic fibrosis), alcoholism, and patients on prolonged hyper-alimentation regimens (administered either intravenously or via a naso-gastric tube). Hypoprothrombinemia with or without bleeding has been reported. Prothrombin time should be monitored in these patients and exogenous vitamin K administered as indicated. A disulfiram-like reaction characterized by flushing, sweating, headache, and tachycardia has been reported when alcohol (beer, wine) was ingested within 72 hours after CEFOBID administration. Patients should be cautioned about the ingestion of alcoholic beverages following the administration of CEFOBID. Prolonged use of CEFOBID may result in the overgrowth of nonsusceptible organisms. Careful observation of the patient is essential. If superinfection occurs during therapy, appropriate measures should be taken. CEFOBID should be prescribed with caution in individuals with a history of gastrointestinal disease, particularly colitis. Carcinogenesis, Mutagenesis, Impairment Of Fertility Long term studies in animals have not been performed to evaluate carcinogenic potential. The maximum duration of CEFOBID animal toxicity studies is six months. In none of the in vivo or in vitro genetic toxicology studies did CEFOBID show any mutagenic potential at either the chromosomal or subchromosomal level. CEFOBID produced no impairment of fertility and had no effects on general reproductive performance or fetal development when administered subcutaneously at daily doses up to 500 to 1000 mg/kg prior to and during mating, and to pregnant female rats during gestation. These doses are 10 to 20 times the estimated usual single clinical dose. CEFOBID had adverse effects on the testes of prepubertal rats at all doses tested. Subcutaneous administration of 1000 mg/kg per day (approximately 16 times the average adult human dose) resulted in reduced testicular weight, arrested spermatogenesis, reduced germinal cell population and vacuolation of Sertoli cell cytoplasm. The severity of lesions was dose dependent in the 100 to 1000 mg/kg per day range; the low dose caused a minor decrease in spermatocytes. This effect has not been observed in adult rats. Histologically the lesions were reversible at all but the highest dosage levels. However, these studies did not evaluate subsequent development of reproductive function in the rats. The relationship of these findings to humans is unknown. Usage In Pregnancy Pregnancy Category B Reproduction studies have been performed in mice, rats, and monkeys at doses up to 10 times the human dose and have revealed no evidence of impaired fertility or harm to the fetus due to CEFOBID. There are, however, no adequate and well controlled studies in pregnant women. Because animal reproduction studies are not always predictive of human response, this drug should be used during pregnancy only if clearly needed. Usage In Nursing Mothers Only low concentrations of CEFOBID are excreted in human milk. Although CEFOBID passes poorly into breast milk of nursing mothers, caution should be exercised when CEFOBID is administered to a nursing woman. Pediatric Use Safety and effectiveness in children have not been established. For information concerning testicular changes in prepubertal rats (see Carcinogenesis, Mutagenesis, Impairment of Fertility). Geriatric Use Clinical studies of CEFOBID® (sterile cefoperazone sodium) 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. Last reviewed on RxList: 3/30/2015
This monograph has been modified to include the generic and brand name in many instances.

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