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 Alcohols (2) Analgesics (6) Anesthetics (4) Antianxiety (2) Antiarrhythmics (2) Anticholinergics (4) Antidepressants (5) Antiepileptics/Antiseizures (1) Antihistamines (3) Antithrombotics (1) (-) Antitussives/Cough Suppressants (2) Benzodiazepines (2) Biomarkers (3) Depressants (6) Diuretics (1) Electrolytes (2) Metals/Elements (10) Muscle Relaxants (3) NPS/Designer Drugs (4) Plasticizers (1) Sedative/Hypnotics (11) Stimulants (2) Volatiles (5) Test Sub-Category Other (2) Test Test Name 0585B Benzonatate, Blood 0585U Benzonatate, Urine