Cefoxitin Cefotetan Cefotan Cefamandole Cefmetazole Cefonicid Loracarbef Cefprozil Cefzil Cefuroxime Ceftin, Zinacef (UK) Cephalosporins (Third generation) Cefixime (antagonistic with Chloramphenicol)[6] Cefspan (Fujisawa), Suprax Improved coverage of Gram-negative organisms, except Pseudomonas.