Cepodoxime

# Cepodoxime ## Overview - **Classification**: Third-generation cephalosporin antibiotic. - **Mechanism**: Inhibits bacterial cell wall synthesis by binding to penicillin-binding proteins (PBPs), leading to bactericidal action. ## Primary Indications 1. **Acute Otitis Media (AOM)** - Bacterial infection of the middle ear. 2. **Pharyngitis/Tonsillitis** - Bacterial infection of the throat. 3. **Community-Acquired Pneumonia (CAP)** - Lower respiratory tract infection. 4. **Uncomplicated Urinary Tract Infections (UTI)** - Bacterial infection of the bladder. 5. **Uncomplicated Skin and Skin Structure Infections** - Minor skin infections. ## Adult Dosing ### Standard Dosing **Community-Acquired Pneumonia (CAP)** - **Dose**: **200 mg** - **Frequency**: Every 12 hours - **Route**: Oral - **Duration**: 14 days **Acute Exacerbations of Chronic Bronchitis (AECB)** - **Dose**: **200 mg** - **Frequency**: Every 12 hours - **Route**: Oral - **Duration**: 10 days **Pharyngitis/Tonsillitis** - **Dose**: **100 mg** - **Frequency**: Every 12 hours - **Route**: Oral - **Duration**: 5-10 days **Uncomplicated Urinary Tract Infections (UTI)** - **Dose**: **100 mg** - **Frequency**: Every 12 hours - **Route**: Oral - **Duration**: 7 days **Uncomplicated Skin and Skin Structure Infections** - **Dose**: **400 mg** - **Frequency**: Every 12 hours - **Route**: Oral - **Duration**: 7-14 days ### Dose Adjustments - **Renal Impairment**: - CrCl 30-80 mL/min: No adjustment needed. - CrCl <30 mL/min: Administer standard dose every **24 hours**. - Hemodialysis: Administer standard dose 3 times/week after dialysis. - **Hepatic Impairment**: No specific dose adjustment generally required. - **Elderly Patients**: Adjust dose based on renal function if CrCl is <30 mL/min. ## Pediatric Dosing ### Neonates (0-28 days) - **Dose**: **Not recommended** - **Special Notes**: Safety and efficacy are not established in this age group. Consider alternative agents. ### Infants (1-12 months) - **Acute Otitis Media (AOM), Pharyngitis/Tonsillitis**: - **Dose**: **5 mg/kg/dose** - **Frequency**: Every 12 hours (total **10 mg/kg/day**) - **Maximum**: **200 mg/dose** (or **400 mg/day**) - **Special Notes**: Use oral suspension. ### Children (1-12 years) - **Acute Otitis Media (AOM), Pharyngitis/Tonsillitis**: - **Dose**: **5 mg/kg/dose** - **Frequency**: Every 12 hours (total **10 mg/kg/day**) - **Maximum**: **200 mg/dose** (or **400 mg/day**) - **Special Notes**: Duration typically 5-10 days. Oral suspension preferred for young children. - **Acute Maxillary Sinusitis**: - **Dose**: **5 mg/kg/dose** - **Frequency**: Every 12 hours (total **10 mg/kg/day**) - **Maximum**: **200 mg/dose** (or **400 mg/day**) - **Special Notes**: Duration typically 10 days. ### Adolescents (13-18 years) - **Dose**: Follow **adult dosing** guidelines. - **Maximum**: Adult maximum doses apply. ## Safety Information ### Contraindications - **Absolute**: Known hypersensitivity to cefpodoxime, other cephalosporin antibiotics. - **Absolute**: History of severe immediate hypersensitivity reaction to penicillin (e.g., anaphylaxis). ### Common Adverse Effects - **Very Common (>10%)**: Diarrhea. - **Common (1-10%)**: Nausea, vomiting, abdominal pain, rash, headache, vaginal fungal infection. - **Serious but Rare**: *Clostridioides difficile*-associated diarrhea (CDAD), severe hypersensitivity reactions (anaphylaxis, Stevens-Johnson Syndrome), hemolytic anemia, seizures (especially with high doses/renal impairment). ### Key Drug Interactions - **Antacids, H2RAs, PPIs**: May decrease cefpodoxime absorption (requires acidic environment). - **Clinical significance**: Reduced efficacy. - **Monitoring**: Administer cefpodoxime 2-3 hours before antacids/H2RAs. Avoid concomitant use if possible. - **Nephrotoxic Drugs (e.g., aminoglycosides, furosemide)**: Increased risk of nephrotoxicity. - **Monitoring**: Monitor renal function closely. - **Oral Anticoagulants (e.g., warfarin)**: May potentiate anticoagulant effect. - **Monitoring**: Monitor INR/PT more frequently. ## Monitoring & Follow-up - **Before Treatment**: Assess allergy history (penicillin/cephalosporins), baseline renal function. - **During Treatment**: Monitor for resolution of infection symptoms. - **During Treatment**: Watch for adverse effects (e.g., diarrhea, rash, superinfections like oral candidiasis). - **Clinical Signs**: Evaluate for signs of allergic reactions, severe diarrhea (consider CDAD), or lack of clinical improvement. ## Clinical Pearls - 💡 **Tip 1**: Administer **with food** to enhance the absorption of cefpodoxime proxetil. - 💡 **Tip 2**: Cefpodoxime oral suspension must be **refrigerated** after reconstitution and discarded after 14 days. - 💡 **Tip 3**: Counsel patients to report severe, persistent, or bloody diarrhea immediately, as it may indicate *C. difficile* infection. > **⚠️ Important**: This information is for educational purposes only. Always consult current prescribing information, local guidelines, and clinical judgment before prescribing.