Loracarbef

**Semantic type:** Antibiotic|Pharmacologic Substance

**Definition:** A semi-synthetic, broad-spectrum, beta-lactamase resistant, second-generation cephalosporin antibiotic derived from cephasporium. The bactericidal activity of loracarbef results from the inhibition of bacterial cell wall synthesis through interference with the cross-linking of peptidoglycan units. This results in a reduction of cell wall stability and causes cell lysis. Loracarbef is more active against a variety of gram-negative organisms but less active against gram-positive pathogens compared to first-generation agents.

**Synonyms:** - (6R, 7S)-7-[(R)-2-Amino-2-phenylacetamido]-3-chloro-8-oxo-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid, Monohydrate - LORACARBEF - Lorabid