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 (2) (-) Serum or Plasma (1) Urine (2) Test Area Therapeutics (1) Test Category Alcohol Deterrents (1) (-) Antianxiety (1) Antiarrhythmics (1) Anticholinergics (1) Antidepressants (2) Antiepileptics/Antiseizures (1) Antigout Agents (1) Antihistamines (5) Antileprosy Agents (1) Antipsychotics (1) Cholinesterase Inhibitors (1) Depressants (1) Diuretics (3) Drugs of Abuse (3) Metals/Elements (1) Muscle Relaxants (4) Pesticides/Insecticides (3) Sedative/Hypnotics (4) Solvents (5) Volatiles (4) Test Sub-Category Benzodiazepines (1) (-) Other (1) Test Test Name 1810SP Doxepin and Metabolite, Serum/Plasma