antistaphylococcal

adjective

an·​ti·​staph·​y·​lo·​coc·​cal -ˌstaf-(ə-)lō-ˈkäk-əl 

variants also anti-staphylococcal

: destroying or inhibiting staphylococci

Until recently, antistaphylococcal penicillins such as oxacillin or nafcillin were considered drugs of choice, but if MRSA prevalence is greater than 30%, vancomycin … is the agent of choice.

—Robert C. Moellering Jr., The Journal of the American Medical Association