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) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type Blood (3) Fluid (2) Serum or Plasma (3) Tissue (2) (-) Urine (2) Test Area Therapeutics (2) Test Category Antianxiety (3) Anticholinergics (1) (-) Antihistamines (2) Antitussives/Cough Suppressants (4) Diuretics (1) Drugs of Abuse (8) Drugs of Abuse, Therapeutics (3) Industrial/Environmental Toxins (2) Potassium Channel Blockers (1) Solvents (2) Volatiles (1) Test Sub-Category (-) Other (2) Test Test Name 1760U Diphenhydramine, Urine 1817U Doxylamine, Urine