Displaying 3 results of Metaxalone Stable Isotopes Metaxalone Stable Isotopes are non-radioactive variants of the muscle relaxant drug, metaxalone. These isotopes have unique atomic structures that do not decay over time, making them useful for medical research and drug development. Metaxalone Stable Isotopes can be used to study the pharmacokinetics and metabolism of the drug in the body, as well as to develop more effective and targeted treatments for conditions such as muscle spasms and pain.