Displaying 13 results of Acyclovir Stable Isotopes Acyclovir Stable Isotopes are isotopically labeled forms of the antiviral drug Acyclovir. They are used in biological and pharmacological research to study the metabolism, pharmacokinetics, and pharmacodynamics of Acyclovir in living organisms. These isotopes are chemically identical to the non-labeled form of Acyclovir, but their unique isotopic composition allows for precise measurement and tracking of the drug's movement and effects in the body.