STUDIES OF PHARMACOLOGICAL EFFECT OF KETOPROFEN / 中国药理学通报

ABSTRACT

Anti-inflammatory and analgesic and antipyretic and gastrointestinal ulcerogenic activities of ketoprofen 2-(3-benzoylphenyl -propionic acid) were investigated in experimental animals.Anti-inflammatory potency of ketoprofen was almost equal to that of indomethacin in carrageenin, yeast or nystatin-incluced hind paw edema and in acetic acid-induced increase of vascular permeability.Oral analgesic ED50-value of ketoprofen was on the whole campa-rable to that of indomethacin.Ketoprofen exerted a strong antipyretic action at oral doses in rats and its potency (ED50-1.22 mg/kg) was 2.3 times of that of indomethacin. However, ulcerogenicity of ketoprofen was weeker than that of indomethacin safety index and therapeutic index (SUD60/ED50 and LD60/ED40) of ketoprofen were greater than that of indomethacin and extremely great (the index ratio=114.7/4.5 ) in the antipyretic activity. It was suggested from these findings that ketoprofen is a potent anti-inflammatory drug with analgesic and antipyretic actions superior to indomethacin and a wide safety margin.