Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (2) Sample Type Blood (1) Serum or Plasma (1) Test Area Therapeutics (2) Test Category Alcohol Deterrents (1) Antianxiety (8) Antiarrhythmics (4) Anticholinergics (3) Antihistamines (12) (-) Antihypertensives (2) Antileprosy Agents (2) Antitussives/Cough Suppressants (10) Cholinesterase Inhibitors (3) Diuretics (4) Drugs of Abuse (32) Drugs of Abuse, Therapeutics (13) Industrial/Environmental Toxins (2) Muscle Relaxants (1) Pesticides/Insecticides (3) Potassium Channel Blockers (2) Solvents (9) Volatiles (7) Test Sub-Category (-) Alpha Blockers (2) Calcium Channel Blockers (3) Test Test Name 1815B Doxazosin, Blood 1815SP Doxazosin, Serum/Plasma