Cefalonium

**Semantic type:** Antibiotic|Pharmacologic Substance

**Definition:** A first-generation semi-synthetic cephalosporin antibiotic with activity against aerobic gram-positive and some community-acquired gram-negative bacteria. Cefalonium is used in veterinary medicine.

**Synonyms:** - (6R,7R)-3-[(4-Carbamoylpyridinio)methyl]-8-oxo-7-[2-(2-thienyl)acetylamino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate - 7-(alpha-Thienylacetamido)-3-(4-carbamoylpyridinomethyl)-3-cephem-4-carboxylic Acid - CEFALONIUM - Lilly 41071