Displaying 11 results of Tenofovir Stable Isotopes Tenofovir is an antiviral medication used to treat HIV and hepatitis B. Tenofovir stable isotopes are isotopes of the drug that have a stable atomic nucleus, making them useful for research and medical studies. These isotopes have the same chemical properties as the original drug but are labeled with a stable isotope, allowing for more accurate tracking and analysis of drug metabolism and excretion in the body.