Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type Blood (2) Fluid (1) Serum or Plasma (2) (-) Urine (1) Test Area (-) Therapeutics (1) Test Category Analgesics (8) Antacids (1) Antianxiety (1) Antidepressants (3) Antidiabetics (1) Antiepileptics/Antiseizures (1) Antihypertensives (1) Antipsychotics (1) Hallucinogens (5) Immunosuppressants (1) (-) Muscle Relaxants (1) NPS/Designer Drugs (1) Sedative/Hypnotics (3) Stimulants (4) Test Sub-Category Other (1) Test Test Name 2720U Metaxalone, Urine