Drug		Dosage
Regimen A
Cefotetan (Cefotan)		2 g IV every 12 hours
or
Cefoxitin		2 g IV every six hours
plus
Doxycycline		100 mg orally or IV every 12 hours
Regimen B
Clindamycin		900 mg IV every eight hours
plus
Gentamicin		Loading dose IV or IM (2 mg per kg), followed by a maintenance dose (1.5 mg per kg) every eight hours; a single daily dose (3 to 5 mg per kg) can be substituted
Alternative regimen
Ampicillin/sulbactam (Unasyn)		3 g IV every six hours
plus
Doxycycline		100 mg orally or IV every 12 hours