Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) (-) Gas Chromatography (GC) (2) High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type Blood (2) (-) Serum or Plasma (2) Test Area Therapeutics (2) Test Category Alcohols (2) Analgesics (2) Anesthetics (2) Antianxiety (1) (-) Antiarrhythmics (2) Antidepressants (2) Antiepileptics/Antiseizures (1) Antineoplastics (1) Antipsychotics (1) Hallucinogens (2) Herbicides (1) Sedative/Hypnotics (1) Volatiles (1) Test Sub-Category Other (2) Test Test Name 3055SP Mexiletine, Serum/Plasma 9211SP Mexiletine Screen, Serum/Plasma