Displaying 8 results of Primaquine Stable Isotopes Primaquine Stable Isotopes are non-radioactive forms of the drug primaquine that are used for research purposes. They are chemically identical to the naturally occurring isotopes of the drug, but have a different number of neutrons in the nucleus. These isotopes are used to study the metabolism, pharmacokinetics, and efficacy of primaquine in various biological systems. They are essential tools for understanding the mechanism of action of the drug and developing more effective treatments for malaria.