42.42 USD. Four tablets twice daily provide 400 mg vitamin C (667%DV), 40 mg manganese (2000%DV), 2000 mg glucosamine sulfate, 2000 mg MSM, 1600 mg chondroitin sulfate, 1500 mg Celadrin, and 200 mg of black cherry, for the ultimate in soothing connective tissue support. cialiso.com cialis...