A Comparative, Double-Blind Study on Tolfenamic Acid in the Treatment of Rheumatoid Arthritis

Abstract
Sixty patients with diagnosed rheumatoid arthritis were treated at random with tolfenamic acid, a new nonsteroid anti-inflammatory analgesic, in a daily dose of 600 mg, or with phenylbutazone 300 mg or acetylsaticylic acid 1500 mg daily. Both the patients and the physician found that tolfenamic acid had a clearly better effect than phenylbutazone or the low-dose acetylsalicylic acid used as a control. Tolfenamic acid and acetylsalicylic acid were well tolerated. Serious side-effects (leukopenia and thrombocytopenia in one case, hematemesis and melena in another) only occurred in those patients who received phenylbutazone.

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