Displaying 2 results of Levodropropizine Stable Isotopes Levodropropizine stable isotopes are non-radioactive isotopes of levodropropizine, a cough suppressant drug. These isotopes have the same chemical properties as the naturally occurring levodropropizine but with a different atomic mass. They are used in research, clinical trials, and drug development to study the pharmacokinetics and metabolism of levodropropizine. These stable isotopes are also used in forensic testing to detect and quantify levodropropizine in biological samples.