Cloxacillin Sodium | 合法藥品大搜索

Cloxacillinsodiumisasodiumsaltformedfromachlorinatedsemisyntheticderivativeofpenicillin.Ithasbeenshowntoexhibitsignificantbactericidalactivity ...

Cloxacillin sodium is a sodium salt formed from a chlorinated semisynthetic derivative of penicillin. It has been shown to exhibit significant bactericidal activity against penicillin G-resistant staphylococci.

Penicillins are a type of β-lactam antibiotic consisting of a four-membered β-lactam ring bound to a five-membered thiazolidine ring. This two-ring system causes distortion of the β-lactam amide bond, resulting in decreased resonance stabilization and increased reactivity. β-lactams inhibit the formation of peptidoglycan cross-links within bacterial cell walls by targeting penicillin-binding proteins or PBPs. Consequently, the bacterial cell wall becomes weak and cytolysis occurs. Resistance to β-lactam antibiotics occurs in the presence of cells containing plasmid encoded extended spectrum β-lactamases or ESBLs.

Antibiotics are often used in clinical in vitro tests known as antimicrobial susceptibility tests or ASTs to determine their eff...