Nature Made® Triple Strength TripleFlex at Costco Item # 616207, contains Glucosamine 1,500 mg, Chondroitin 1,200 mg, plus MSM 250 mg. I take this myself and found that taking 2-3 tablets per day is extremely helpful for my back pain. Glucosamine, Chondroitin and MSN has been widely recommended for all types of joint pain. Costco also sells Kirkland Signature™ Extra Strength Glucosamine / Chondroitin 170 Tablets Glucosamine HCI 1500mg / Chondroitin Sulfate 1200mg Item # 775613 which also works well for me.
Costco also sells another brand which is almost three times the price and doesn’t have MSN Cosamin® DS (Double Strength). Both are available at the Costco store and online.
Celadrin® claims it “is an all natural proprietary ingredient, that has been clinically proven to reduce pain and rapidly promote joint health, improving flexibility and mobility. Clinically studied at various times in Vivo, it has been published twice in the prestigious Journal of Rheumatology. Available for oral and topical applications, Celadrin’s beneficial effects have been proven superior in results to Glucosamine, Chondroitin, MSM, SAMe and other arthritic medications.”