Biochem/physiol Actions Metabolite of meprobamate that is a skeletal muscle relaxant, reduces muscle spasm by depression of brainstem neurons. Other Notes Tandem Mass Spectrometry data independently generated by Scripps Center for Metabolomics is available to view or download in PDF. C8759.pdf Tested metabolites are featured on Scripps Center for Metabolomics METLIN Metabolite Database. To learn more, visit sigma.com/metlin.