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) (2) Sample Type (-) Blood (1) (-) Serum or Plasma (1) Urine (1) Test Area Therapeutics (2) Test Category Anesthetics (2) Antianxiety (2) Anticholinergics (2) Antidepressants (4) Antiepileptics/Antiseizures (2) Antihistamines (3) Antipsychotics (1) (-) Antitussives/Cough Suppressants (2) Diuretics (2) Muscle Relaxants (2) Plasticizers (1) Volatiles (2) Test Sub-Category (-) Other (2) Test Test Name 0585B Benzonatate, Blood 0585SP Benzonatate, Serum/Plasma