 Osteoarthritis of both the knee and hip joints are common conditions; knee osteoarthritis affects 6 of adults over 30 years of age and osteoarthritis of the hip affects between 3 and 6 of the Caucasian population. Both forms of osteoarthritis are associated with disability. Conventional treatment analgesics and the use non-steroidal anti-inflammatory, NSAIDS is prophylactic, aimed at decreasing pain and improving function. However long term use of NSAIDS is associated with a high incidence of adverse events gastrointestinal tract symptoms. A safer alternative treatment would therefore be beneficial. 