Penicillin G Potassium

**Semantic type:** Antibiotic|Pharmacologic Substance

**Definition:** The potassium salt form of penicillin G, a broad-spectrum penicillin antibiotic. Penicillin G potassium binds to penicillin binding proteins (PBP), the enzymes that catalyze the synthesis of peptidoglycan, which is a critical component of the bacterial cell wall. This leads to the interruption of cell wall synthesis, consequently leading to bacterial cell growth inhibition and cell lysis.

**Synonyms:** - 4-Thia-1-azabicyclo(3.2.0)heptane-2-carboxylic acid, 3,3-dimethyl-7-oxo-6-(2-phenylacetamido)-, Monopotassium Salt - Benzylpenicillinic Acid Potassium Salt - Capicillin - PENICILLIN G POTASSIUM - Sugracillin - Tabilin