Two trials of diflunisal in osteoarthritis.

Two double-blind inter-group trials were carried out in which diflunisal was compared for 12 weeks against aspirin in 30 patients with osteoarthritis of knees or hips, and against naproxen for 8 weeks in 20 patients with osteoarthritic knees. Diflunisal appeared to be somewhat better than aspirin in terms of both effectiveness and tolerance, whilst it was similar in both repects to naproxen.