Cutibacterium (formerly Propionibacterium) acnes

Therapy Dose Duration
Penicillin 4MU IV q4h 6 weeks

Alternative

Therapy Dose Duration
Ceftriaxone 2g IV daily 6 weeks

Penicillin & ceftriaxone allergy

Therapy Dose Duration
Clindamycin 600mg IV q8h or 6 weeks
  450mg PO qid  
or    
Vancomycin 15mg/kg IV q8-12h 6 weeks