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) Sample Type Blood (1) Fluid (1) Serum or Plasma (1) (-) Urine (1) Test Area Therapeutics (1) Test Category (-) Antianxiety (1) Anticholinergics (1) Antigout Agents (1) Antihistamines (7) Antipsychotics (2) Biomarkers (1) Drugs of Abuse (7) Gases (1) Industrial/Environmental Toxins (3) Muscle Relaxants (3) Other (1) Sedative/Hypnotics (4) Solvents (4) Volatiles (2) Test Sub-Category Benzodiazepines (1) (-) Other (1) Selective Serotonin Reuptake Inhibitors (SSRI) (1) Test Test Name 1810U Doxepin and Metabolite, Urine