title: Effect of ampicillin on theophylline half-life in infants and young children.
mesh_terms: D000667:Ampicillin / Q000494:pharmacology*; D001249:Asthma / Q000188:drug therapy / Q000378:metabolism; D002648:Child; D002675:Child, Preschool; D004357:Drug Synergism; D006207:Half-Life; D006801:Humans; D007223:Infant; D012189:Retrospective Studies; D013806:Theophylline / Q000378:metabolism*
chemical_list: D000667:Ampicillin; D013806:Theophylline