Penicillins and cephalosporins.
D000667:Ampicillin; D002511:Cephalosporins; D055598:Chemical Phenomena; D002621:Chemistry; D003023:Cloxacillin; D006801:Humans; D008712:Methicillin; D010400:Penicillin G / Q000009:adverse effects / Q000494:pharmacology; D010403:Penicillin Resistance; D010404:Penicillin V; D010405:Penicillinase; D010406:Penicillins
D002511:Cephalosporins; D010406:Penicillins; D000667:Ampicillin; D010405:Penicillinase; D003023:Cloxacillin; D010400:Penicillin G; D008712:Methicillin; D010404:Penicillin V