title: Mecillinam and ampicillin separately or combined in gram-negative septicemia.
abstract: Of 20 patients with gram-negative septicemia treated with mecillinam alone or in combination with ampicillin, successful therapeutic results were obtained in 16. In 11 patients treated with ampicillin alone, three failures responded successfully to a combination of mecillinam and ampicillin. Mecillinam MIC values of isolated Enterobacteriaceae were 0.05-0.4 micrograms/ml. In patients receiving 5 mg/kg mecillinam intravenously every six hours, the mean 0.5 hour concentration was 11.0 micrograms/ml and in those given 10 mg/kg 23.3 migcrograms/ml. No serious side effects were recorded. One patient on mecillinam developed an exanthema, as did three patients on combined therapy.
mesh_terms: D000328:Adult; D000368:Aged; D000560:Amdinocillin / Q000008:administration & dosage / Q000009:adverse effects / Q000378:metabolism / Q000627:therapeutic use*; D000667:Ampicillin / Q000008:administration & dosage / Q000009:adverse effects / Q000378:metabolism / Q000627:therapeutic use*; D004359:Drug Therapy, Combination; D004755:Enterobacteriaceae / Q000187:drug effects; D004756:Enterobacteriaceae Infections / Q000188:drug therapy*; D005076:Exanthema / Q000139:chemically induced; D005260:Female; D006207:Half-Life; D006801:Humans; D007700:Kinetics; D008297:Male; D008826:Microbial Sensitivity Tests; D008875:Middle Aged; D010397:Penicillanic Acid / Q000627:therapeutic use*; D018805:Sepsis / Q000188:drug therapy*
chemical_list: D000667:Ampicillin; D010397:Penicillanic Acid; D000560:Amdinocillin