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 (-) Antitussives/Cough Suppressants (2) Test Sub-Category Other (2) Test Test Name 0585B Benzonatate, Blood 0585U Benzonatate, Urine