Diclofenac (Voltaren®) for the Treatment of Osteo-Arthrosis: A Double-Blind Comparison with Naproxen

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Abstract
A double-blind, between-patient, comparative trial of diclofenac (Voltaren) and naproxen was carried out in 30 patients suffering from osteo-arthrosis of the hip or the knee. The drugs were given twice daily, morning and evening, during a period of two weeks. The daily dose was 100 mg for Voltaren and 500 mg for naproxen. The results indicate that Voltaren brought relief of pain and stiffness in a greater number of patients than did naproxen. The same finding was made regarding the influence on the range of joint movements, the difference reaching statistical significance. Voltaren appeared also to be better tolerated since the number of patients reporting side-effects was smaller and the complaints of less severity.