Displaying 4 results of Tizanidine Stable Isotopes Tizanidine is a muscle relaxant used to treat muscle spasms and spasticity. Tizanidine Stable Isotopes are non-radioactive isotopes of tizanidine that are used in research and clinical applications. These isotopes are essential tools for studying the pharmacokinetics, metabolism, and bioavailability of tizanidine in biological systems. They enable precise measurements and accurate analysis of tizanidine in various biological matrices and provide an important resource for the development of new therapeutic approaches for muscle-related disorders.