Cephalosporins

1st	Cefazolin Cefacetrile Cefadroxil Cephalexin Cefaloglycin Cefalonium Cefaloridine Cefalotin Cefapirin Cefatrizine Cefazedone Cefazaflur Cefradine Cefroxadine Ceftezole

2nd	Cefaclor Cefamandole Cefminox Cefonicid Ceforanide Cefotiam Cefprozil Cefbuperazone Cefuroxime Cefuzonam cephamycin (Cefoxitin Cefotetan Cefmetazole) carbacephem (Loracarbef)

3rd	Cefixime Ceftriaxone antipseudomonal (Ceftazidime Cefoperazone) Cefcapene Cefdaloxime Cefdinir Cefditoren Cefetamet Cefmenoxime Cefodizime Cefotaxime Cefpimizole Cefpiramide Cefpodoxime Cefsulodin Cefteram Ceftibuten Ceftiolene Ceftizoxime oxacephem (Flomoxef)

4th (antipseudomonal)	Cefepime Cefozopran Cefpirome Cefquinome

5th	Ceftobiprole Ceftaroline fosamil