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# Forcef (Cephradine)
## Overview
Cephradine is a first-generation cephalosporin antibiotic. It acts by inhibiting bacterial cell wall synthesis. It is chemically stable and shares a similar spectrum of activity to cephalexin, covering most Gram-positive cocci (e.g., *Staphylococcus aureus*, *Streptococcus pyogenes*) and select Gram-negative organisms (e.g., *E. coli*, *Proteus mirabilis*, *Klebsiella* spp.).
## Primary Indications
* Respiratory tract infections (e.g., pharyngitis, tonsillitis, pneumonia)
* Otitis media
* Skin and soft tissue infections
* Urinary tract infections (UTIs)
* Bone and joint infections
## Adult Dosing
* **Mild to Moderate Infections:** 250–500 mg orally every 6 hours or 500 mg to 1 g every 12 hours.
* **Severe/Systemic Infections:** Up to 1 g orally every 6 hours.
* **Maximum Dose:** Generally 4 g daily, though higher doses have been used in severe infections based on clinical judgment.
## Pediatric Dosing
* **General Dosage:** 25–50 mg/kg/day administered in divided doses every 6 or 12 hours.
* **Otitis Media:** 75–100 mg/kg/day in divided doses every 6 or 12 hours.
* **Maximum Dose:** Do not exceed adult maximum daily limits (4 g/day).
## Dose Adjustments
* **Renal Impairment:** Dosage must be reduced in patients with creatinine clearance (CrCl) < 50 mL/min.
* CrCl 20–50 mL/min: Reduce dose or increase interval.
* CrCl 5–20 mL/min: 250 mg every 12 hours.
* CrCl < 5 mL/min: 250 mg every 24 hours.
* *Note:* Cephradine is removed by hemodialysis; supplemental doses should be considered post-dialysis.
## Contraindications
* Hypersensitivity to cephradine or any cephalosporin antibiotic.
* History of anaphylaxis to penicillins (use extreme caution/avoid due to potential cross-reactivity).
## Adverse Effects
* **Common:** Diarrhea, nausea, vomiting, abdominal pain.
* **Serious:** *Clostridioides difficile*-associated diarrhea (CDAD), hypersensitivity reactions (rash, urticaria, anaphylaxis), neutropenia, elevated liver enzymes, and interstitial nephritis.
## Key Drug Interactions
* **Probenecid:** Inhibits renal tubular secretion of cephradine, increasing serum concentrations and half-life.
* **Aminoglycosides:** Potential for synergistic nephrotoxicity.
* **Warfarin:** Cephalosporins may alter vitamin K metabolism or intestinal flora, potentially increasing the anticoagulant effect (monitor INR).
## Monitoring
* Renal function (BUN/SCr) periodically, especially in elderly or renally impaired patients.
* Signs of superinfections (oral candidiasis, vaginal yeast infections).
* Monitor for persistent diarrhea (potential *C. difficile*).
* Complete Blood Count (CBC) during prolonged therapy.
## Clinical Pearls
* **Administration:** May be taken with or without food. Food may delay absorption but does not significantly decrease the total extent of absorption.
* **Cross-Reactivity:** Use with extreme caution in patients with a history of IgE-mediated reactions to penicillins; avoid if the reaction was severe (e.g., anaphylaxis).
* **Spectrum:** Does not cover MRSA, *Enterococcus*, or *Pseudomonas*.
* **Availability:** Cephradine is less commonly prescribed in many regions today, with cephalexin or cefadroxil often serving as preferred first-generation alternatives.
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**Disclaimer:** This information is for educational purposes only. Clinical practice guidelines and local formulary protocols vary significantly. Always verify doses, contraindications, and potential drug-drug interactions with current prescribing monographs (e.g., Lexicomp, UpToDate) and local institutional guidelines before administering medication.
