Displaying 8 results of Drospirenone Stable Isotopes Drospirenone stable isotopes are non-radioactive forms of the hormone drospirenone, commonly used in oral contraceptives. These isotopes have the same chemical properties as the natural hormone, but are labeled with a stable isotope of carbon or hydrogen. This labeling allows researchers to track the fate of the hormone in the body without interfering with its normal function. The use of stable isotopes in drug development and clinical research is becoming increasingly important, as it provides a safe and accurate way to study the effects of drugs in the body.