Chondroitin sulfate (CS) plus glucosamine sulfate (GS) was no better than placebo for reducing pain and function impairment in a multicenter, randomized, double-blinded, placebo-controlled study of 164 patients with knee osteoarthritis.
Although the use of CS and GS has been recognized since the 1970s, there has been limited data concerning their efficacy for treating knee osteoarthritis. Additional research may provide valuable insights on what role CS+GS therapy might play in the management of osteoarthritis.