Please check your internet connection and try again.
# Tabgenixim (Cefixime)
## Overview
Tabgenixim is a brand name/alternative designation for **Cefixime**, a third-generation oral cephalosporin antibiotic. It exhibits broad-spectrum activity against many Gram-negative organisms and some Gram-positive bacteria by inhibiting bacterial cell wall synthesis.
## Primary Indications
* Uncomplicated urinary tract infections (UTIs)
* Otitis media
* Pharyngitis and tonsillitis
* Acute bronchitis and acute exacerbations of chronic bronchitis
* Uncomplicated gonorrhea (cervical/urethral/rectal)
* Typhoid fever (off-label)
## Adult Dosing
* **General infections:** 400 mg once daily or 200 mg every 12 hours.
* **Uncomplicated gonorrhea:** 800 mg orally as a single dose.
* **Maximum daily dose:** 400 mg (except for specific indications like gonorrhea).
## Pediatric Dosing
* **General pediatric (age >6 months):** 8 mg/kg/day orally as a single dose or divided into two doses (4 mg/kg every 12 hours).
* **Otitis media:** 8 mg/kg/day once daily or divided twice daily.
* **Maximum:** Do not exceed 400 mg per day.
## Dose Adjustments
* **Renal Impairment:** If CrCl <60 mL/min or patient is on hemodialysis, dose reduction is required.
* CrCl 21–60 mL/min: Reduce dose by 25% or extend dosing interval.
* CrCl <20 mL/min or hemodialysis: Reduce dose by 50%.
* **Hepatic Impairment:** No specific adjustment guidelines exist; use with caution.
## Contraindications
* Known hypersensitivity to cefixime or other cephalosporin antibiotics.
* History of severe, immediate hypersensitivity reactions (e.g., anaphylaxis) to penicillins or other beta-lactams.
## Adverse Effects
* **Common:** Diarrhea (often dose-dependent), abdominal pain, nausea, dyspepsia, and flatulence.
* **Serious:** *Clostridioides difficile*-associated diarrhea (CDAD), severe hypersensitivity reactions (anaphylaxis, Stevens-Johnson syndrome, toxic epidermal necrolysis), and hematologic abnormalities (leukopenia, thrombocytopenia).
## Key Drug Interactions
* **Warfarin/Anticoagulants:** May enhance the anticoagulant effect by altering gut flora and reducing Vitamin K synthesis; monitor INR.
* **Probenecid:** May increase serum concentrations of cefixime by inhibiting renal excretion.
* **Carbamazepine:** Rare reports of increased carbamazepine levels when taken concurrently.
## Monitoring
* Monitor for signs of hypersensitivity.
* Assess for persistent diarrhea to rule out *C. difficile* infection.
* In long-term therapy, monitor renal and hepatic function, and complete blood count (CBC).
## Clinical Pearls
* **Bioavailability:** Suspension form has higher bioavailability than equivalent tablet doses; consider this when switching formulations.
* **Spectrum:** Poor activity against *Staphylococcus aureus* (methicillin-susceptible) and *Enterococcus* species.
* **Administration:** Can be taken with or without food.
* **Local Protocols:** Treatment for gonorrhea and typhoid fever varies significantly by region due to antimicrobial resistance patterns; always confirm local antibiogram and public health guidelines.
***
**Educational Disclaimer:** This information is for educational purposes only. Clinical practice varies by institution and region. Always verify specific dosing, safety, and contraindications by consulting current FDA-approved labeling, local institutional protocols, or reputable clinical databases (e.g., Lexicomp, UpToDate) before prescribing.
