Etodolac Stable Isotopes are isotopes of etodolac, a nonsteroidal anti-inflammatory drug (NSAID) that is used to treat pain and inflammation caused by conditions such as arthritis. These stable isotopes are used in research and analytical applications to study the pharmacokinetics, metabolism, and bioavailability of etodolac in biological systems. They can also be used for pharmacological studies and drug development. The etodolac stable isotopes are non-radioactive and do not pose any health risks.