Mixed aerobic/anaerobic necrotizing fasciitis and Fournier’s gangrene

Fournier’s gangrene: necrotizing fasciitis of abdominal wall, buttocks, and genitalia, often following trauma, perianal or retroperitoneal infection, urinary tract infection, or diverticulitis.

 
Polymicrobial:
Therapy Dose Duration
Piperacillin-tazobactam 4.5g IV q6h 10-14 days
+/-    
Vancomycin 15mg/kg IV q8-12h 10-14 days

Alternative

Therapy Dose Duration
Imipenem 1g IV q6h 10-14 days
+/-    
Vancomycin 15mg/kg IV q8-12h 10-14 days