Displaying 3 results of Penicillamine Stable Isotopes Penicillamine Stable Isotopes are isotopes of the medication penicillamine that have a stable atomic structure, meaning they do not decay or emit radiation. These isotopes are used in research and medical applications to track the absorption, distribution, and elimination of penicillamine in the body. They can also be used to verify the authenticity and purity of commercial penicillamine products.