Cefalonium is a cephalosporin antibiotic.1 It is active against pooled isolates of S. aureus from the milk of lactating dairy cows with subclinical mastitis (MIC90 = 2 µg/ml). Formulations containing cefalonium have previously been used in dry cow therapy in the treatment and prevention of mastitis.
1.Moroni, P., Pisoni, G., Antonini, M., et al.Short communication: Antimicrobial drug susceptibility of Staphylococcus aureus from subclinical bovine mastitis in ItalyJ. Dairy Sci.89(8)2973-2976(2006)