Displaying 13 results of Lidocaine Stable Isotopes Lidocaine is a commonly used local anesthetic that is administered to numb specific areas of the body during surgical or medical procedures. Stable isotopes of lidocaine are isotopically enriched forms of the drug that can be used in research and clinical studies to better understand its pharmacokinetics, metabolism, and mechanism of action. These isotopes can be used to track the distribution and elimination of lidocaine in the body, providing valuable insights into its safety and efficacy.