title: Safety and efficacy of feprazone for long-term treatment of rheumatoid arthritis and osteoarthritis.
abstract: Long-term safety and efficacy of feprazone (4-prenyl-1,2-diphenyl-3,5-pyrazolidinedione), an antirheumatic drug that is well tolerated in the gastrointestinal tract, were assessed in a noncontrolled multicenter trial. Administered at a daily dosage of 600 mg for a mean duration of 114.1 days, feprazone was well tolerated by 43 (77%) of 56 treated subjects. Thirteen patients reported side effects, but only five discontinued treatment. The side effects were generally mild and occurred in the first weeks of therapy. Feprazone was found effective after one month on both considered indices of disease activity: Ritchie index (articular index for assessment of joint tenderness) and corticosteroid consumption.
mesh_terms: D001172:Arthritis, Rheumatoid / Q000188:drug therapy*; D005260:Female; D011298:Feprazone / Q000009:adverse effects / Q000627:therapeutic use*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010003:Osteoarthritis / Q000188:drug therapy*; D010653:Phenylbutazone / Q000031:analogs & derivatives*
chemical_list: D011298:Feprazone; D010653:Phenylbutazone