Efficacy and safety of willow bark extract?




"OBJECTIVE: To investigate the efficacy and safety of a standardized willow bark extract in patients with osteoarthritis (OA) and rheumatoid arthritis (RA). "


"CONCLUSION: The OA study suggested that the willow bark extract showed no relevant efficacy in patients with OA. Similarly, the RA trial did not indicate efficacy of this extract in patients with RA."


Biegert C, Wagner I, Lüdtke R, Kötter I, Lohmüller C, Günaydin I, Taxis K, Heide L.
Efficacy and safety of willow bark extract in the treatment of osteoarthritis and rheumatoid arthritis: results of 2 randomized double-blind controlled trials. J Rheumatol. 2004 Nov;31(11):2121-30.

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