Displaying 2 results of Avacopan Stable Isotopes Avacopan is a drug that is being studied for its potential use in treating autoimmune diseases. Stable isotopes of Avacopan are used in clinical trials to help researchers understand how the drug is processed by the body and how it interacts with the immune system. These isotopes are safe and non-radioactive, making them a valuable tool for studying the pharmacokinetics and pharmacodynamics of Avacopan.