Forcef (cephradine)

# Forcef (cephradine) ## Overview Cephradine is a first-generation cephalosporin antibiotic. It is bactericidal, acting by inhibiting bacterial cell wall synthesis. It has broad-spectrum activity against many Gram-positive and some Gram-negative organisms. ## Primary Indications * **Respiratory tract infections:** Pneumonia, bronchitis. * **Urinary tract infections:** Cystitis, pyelonephritis. * **Skin and soft tissue infections:** Cellulitis, impetigo. * **Bone and joint infections:** Osteomyelitis. * **Genitourinary tract infections:** Gonorrhea (in conjunction with other agents if indicated). * **Pharyngitis and tonsillitis** due to *Streptococcus pyogenes*. ## Adult Dosing * **General Infections:** 250 mg to 500 mg every 6 hours. * **Severe Infections:** 1 gram every 6 hours. * **Urinary Tract Infections:** 250 mg every 12 hours or 500 mg every 12 hours for more severe cases or chronic urinary tract infections. * **Skin and Skin Structure Infections:** 500 mg every 12 hours. * **Pneumonia and Severe Respiratory Infections:** 500 mg every 6 hours. * **Maximum Dose:** Generally, 4 grams per day. Dosing for specific indications may vary based on local protocols and pathogen susceptibility. ## Pediatric Dosing * **General Infections:** 25 mg/kg/day to 50 mg/kg/day divided into 4 doses. * **Severe Infections:** Up to 75 mg/kg/day divided into 4 doses. * **Maximum Dose:** Not to exceed adult maximum dose of 4 grams per day. ## Dose Adjustments * **Renal Impairment:** Dose reduction is necessary in patients with impaired renal function. Creatinine clearance (CrCl) guides the adjustment. * CrCl > 50 mL/min: Usual dose. * CrCl 10-30 mL/min: Half of the usual dose every 12-24 hours. * CrCl < 10 mL/min: Quarter of the usual dose every 24-48 hours. * Hemodialysis: An additional dose should be given after dialysis. Specific dosing adjustments should be guided by current renal dosing guidelines. ## Contraindications * Hypersensitivity to cephradine or other cephalosporins. * History of severe allergic reaction to penicillin. ## Adverse Effects * **Common:** Diarrhea, nausea, vomiting, abdominal pain, rash, pruritus. * **Serious:** Anaphylaxis, *Clostridium difficile*-associated diarrhea (CDAD), Stevens-Johnson syndrome, toxic epidermal necrolysis, hepatic dysfunction, renal dysfunction, hematologic abnormalities (e.g., eosinophilia, leukopenia, neutropenia, thrombocytopenia, positive Coombs test). ## Key Drug Interactions * **Probenecid:** May increase and prolong serum concentrations of cephradine. * **Oral contraceptives:** Cephalosporins may reduce the efficacy of oral contraceptives. Advise patients to use alternative non-hormonal contraception. * **Aminoglycosides, Loop Diuretics:** Potential for additive nephrotoxicity, especially with high doses or pre-existing renal impairment. ## Monitoring * Monitor for signs and symptoms of hypersensitivity reactions. * Monitor for diarrhea, especially if severe or persistent, which may indicate CDAD. * Renal function should be monitored in patients with renal impairment or those receiving potentially nephrotoxic agents. * Blood counts may be monitored in prolonged therapy. ## Clinical Pearls * Cephradine can be administered orally or intravenously/intramuscularly. The formulation requested is "Forcef," implying an oral formulation. * Cross-reactivity with penicillin allergies can occur, though it is less common with first-generation cephalosporins than with later generations. * Ensure adequate hydration to prevent crystalluria, especially with parenteral administration. * Treatment should be continued for at least 24-48 hours after symptoms subside or bacteriologic cure is achieved. *** **Disclaimer:** This information is for educational purposes only and does not substitute for professional medical advice. Always consult with a qualified healthcare provider and refer to the most current prescribing information, including the product's official package insert, for complete and up-to-date details regarding indications, dosages, contraindications, warnings, precautions, adverse effects, and drug interactions before prescribing or administering any medication.