Copy-Paste Medication Orders
Doxycycline 100 mg PO BID × 7 days
Doxycycline 100 mg orally every 12 hours for 7 days
- No renal dose adjustment required 1
- Take with adequate fluid (full glass of water) to reduce esophageal irritation risk
- May be taken with food or milk if gastric irritation occurs
- Absorption not significantly affected by food
Amoxicillin-Clavulanate 875/125 mg PO BID × 7 days (Alternative)
Amoxicillin-clavulanate 875 mg/125 mg orally every 12 hours for 7 days
- No renal dose adjustment required for standard dosing 2
- Take at the start of meals to enhance clavulanate absorption and reduce GI side effects 2
- Higher risk of diarrhea (14-15%) and secondary yeast infections (1.1%) compared to amoxicillin alone 2, 3
Clinical Context from Guidelines
For animal/human bite wounds, amoxicillin-clavulanate 875/125 mg PO BID is the recommended first-line oral therapy 4. This regimen provides coverage against both aerobic and anaerobic bacteria commonly found in bite wounds, including Pasteurella multocida (animal bites) and oral anaerobes.
The every-12-hour dosing of both antibiotics is supported by FDA labeling and clinical trials demonstrating equivalent efficacy to more frequent dosing regimens with improved tolerability 1, 2, 5. The 7-day duration aligns with IDSA guideline recommendations for bite wound infections 4.
Key Prescribing Notes:
- Both regimens require no dose adjustment in renal impairment at standard doses
- Doxycycline has lower GI side effect profile but is contraindicated in pregnancy
- Amoxicillin-clavulanate provides broader anaerobic coverage but carries higher risk of C. difficile infection (0.04% vs 0.02%) 3
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