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 (2) Fluid (1) (-) Serum or Plasma (1) Urine (2) Test Area Therapeutics (1) Test Category Alcohol Deterrents (1) (-) Antianxiety (1) Antiarrhythmics (1) Antihistamines (2) Pesticides/Insecticides (1) Solvents (2) Volatiles (1) Test Sub-Category (-) Other (1) Test Test Name 1810SP Doxepin and Metabolite, Serum/Plasma