Uracyst® - effective relief from interstitial cystitis. The active ingredient in Uracyst® is sterile sodium chondroitin sulphate 2%. Chondroitin sulphate is a substance found naturally in the body including the Glycosaminoglycan layer of the bladder (GAG layer). This GAG layer when healthy, helps protect the highly sensitive bladder wall. Stellar developed Uracyst® to replenish the GAG layer in Interstitial Cystitis patients.