Cephapirin Sodium

**Semantic type:** Antibiotic|Pharmacologic Substance

**Definition:** The sodium salt form of cephapirin, a semi-synthetic, broad-spectrum, beta-lactam, first-generation cephalosporin antibiotic with bactericidal activity. Cephapirin sodium inhibits bacterial cell wall synthesis by inhibiting the final transpeptidation step of peptidoglycan synthesis and subsequent cross-linking of peptidoglycan units. This results in a reduction of cell wall stability and leads to cell lysis.

**Synonyms:** - 5-Thia-1-azabicyclo(4,2,0)oct-2-ene-2-carboxylic acid, 3-(hydroxymethyl)-8-oxo-7-(2-(4-pyridylthio)acetamido)-, Acetate (Ester), Monosodium Salt - 7-(alpha-(4-Pyridylthio)acetamido)cephalosporanic acid sodium salt - Bristocef - CEPHAPIRIN SODIUM - Cefadyl - Cefalak - Cephatrexil - Sodium (6R-trans)-3-(Acetoxymethyl)-8-oxo-7-((4-pyridylthio)acetamido)-5-thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylate - Sodium; (6R,7R)-3-(acetyloxymethyl)-8-oxo-7-[(2-pyridin-4-ylsulfanylacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate