Oxacillin

**Semantic type:** Antibiotic|Organic Chemical|Pharmacologic Substance

**Definition:** A semisynthetic penicillinase-resistant and acid-stable penicillin with an antimicrobial activity. Oxacillin binds to penicillin-binding proteins in the bacterial cell wall, thereby blocking the synthesis of peptidoglycan, a critical component of the bacterial cell wall. This leads to inhibition of cell growth and causes cell lysis.

**Synonyms:** - OXACILLIN