Displaying 2 results of Isradipine Stable Isotopes Isradipine Stable Isotopes are non-radioactive versions of the calcium channel blocker drug, isradipine. These isotopes have the same chemical properties as the naturally occurring isradipine, but are labeled with stable isotopes of carbon, hydrogen, and nitrogen. Isradipine Stable Isotopes are used in pharmacokinetic and pharmacodynamic studies to track the drug's distribution and metabolism in the body.