Chondroitin Sulfate & Glucosamine Hydrochloride Revisited Some 10 years ago, a landmark trial of chondroitin sulfate and glucosamine hydrochloride found the drugs ineffective, whether taken alone or in combination. In a new, six-month trial in Europe, the drugs were tested again, along with celecoxib. Patients with knee OA and moderate-to-severe …
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