DR Capsule is a delayed-release capsule and Kidney C.O.P. uses a unique, patented version called DRcaps. These vegetarian capsules have properties that slow down the opening of the capsule after swallowing and by-passing the stomach, minimizing the risk for acid reflux. Most importantly, these delayed-release capsules allow for the active ingredients in Kidney C.O.P. to be primarily absorbed through the intestines which is important for realizing the maximum benefit in the kidney.