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) (2) Gas Chromatography/Mass Spectrometry (GC/MS) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (4) Sample Type Blood (6) (-) Fluid (2) Serum or Plasma (7) Tissue (1) Urine (3) Test Area (-) Therapeutics (2) Test Category Antianxiety (1) Antihistamines (1) Test Sub-Category (-) Other (2) Phenothiazines (1) Test Test Name 1810FL Doxepin and Metabolite, Fluid 1817FL Doxylamine, Fluid