Displaying 10 results of Gemcitabine Stable Isotopes Gemcitabine is a chemotherapy drug used to treat several types of cancer. Stable isotopes of gemcitabine are non-radioactive versions of the drug that are used in research and clinical studies to better understand how the drug works and to develop more effective treatments. These isotopes have the same chemical properties as the original drug but can be safely handled and studied without the risks associated with radiation exposure.