The infection is usually polymicrobial and necessitates the use of combined drugs.
Erythromycin (O) 500 mg every 8 hours for 10 days.
PLUS
Metronidazole (O) 400-500 mg every 8 hours for 7 days.
NOTE The dose of Erythromycin may be reduced to every 8 hours if side effects are intolerable, but the period should be extended appropriately. |
CAUTION:
• Avoid taking both drugs concomitantly if sides effects are intolerable
• Avoid metronidazole in the first trimester
• Avoid alcohol while taking metronidazole