Displaying 11 results of Beclomethasone Stable Isotopes Beclomethasone is a synthetic steroid used to treat inflammation in the lungs, skin, and joints. Stable isotopes of beclomethasone are used in medical research to study drug metabolism, pharmacokinetics, and drug interactions. These isotopes are chemically identical to the non-labeled compound, but contain a stable, non-radioactive isotope that allows for precise tracking and measurement within biological systems.