Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Enzyme-Linked Immunosorbent Assay (ELISA) (13) Enzyme Immunoassay (EIA) (10) Gas Chromatography (GC) (19) (-) Gas Chromatography (GC) and Gas Chromatography/Mass Spectrometry (GC/MS) (2) Gas Chromatography/Mass Spectrometry (GC/MS) (3) Headspace Gas Chromatography (GC) (11) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (15) High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) (1) High Performance Liquid Chromatography/Time of Flight-Mass Spectrometry (LC/TOF-MS) (4) Spectrophotometry (SP) (1) Sample Type (-) Blood (1) (-) Urine (1) Test Area Therapeutics (2) Test Category Antianxiety (2) Test Sub-Category (-) Other (2) Tricyclic (2) Test Test Name 8705B Doxepin and Metabolite, Blood 8705U Doxepin and Metabolite, Urine