<unk>  (INN, also spelled cephacetrile) is a broad-spectrum first generation cephalosporin antibiotic effective in gram-positive and gram-negative bacterial infections. It is a bacteriostatic antibioticCefacetrile is marketed under the trade names Celospor, Celtol, and Cristacef, and as Vetimast for the treatment of mammary infections in lactating cows.
Cefacetrile
Cefazolin sodium
Meropenem
Cefotaxime sodium
Tazobactam
Enoxacin
Clindamycin hydrochloride 
Piperacillin