intravenous doses of 0.5 , 1 , and 2 g cephalothin and cefoxitin , a semi-synthetic cephamycin antibiotic highly resistant to bacterial cephalosporinase , were infused over a period of 3 minutes into 18 normal adult males by a randomized , crossover design .
C0007557
cefoxitin
C0007736
cephamycin