Displaying 5 results of Fingolimod Stable Isotopes Fingolimod is a drug used to treat multiple sclerosis. Stable isotopes of fingolimod are used in research to study the drug's metabolism and distribution in the body. These isotopes have the same number of protons and electrons as the non-radioactive form of the drug, but differ in the number of neutrons. This allows for precise tracking and analysis of fingolimod's effects.