Clinical Trial of Pirprofen in Arthrosis of the Knee Joint: A Double-Blind Comparison with Indomethacin

Thirty-nine patients suffering front arthrosis of the knee were randomly allocated to either pirprofen 400 mg b.i.d. or indomethacin 50 mg b.i.d., the treatment being double-blind. Assessments for pain and joint stiffness were made after 2 and 4 weeks. Both treatments appeared to be equally effective and induced side-effects in a limited number of patients. Similar observations were made in those patients who continued the treatment over longer periods of time.