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) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type Blood (2) (-) Serum or Plasma (2) Urine (2) Test Area Therapeutics (2) Test Category Antiparkinsons (1) Sympathomimetic Amines (1) Test Sub-Category Alkaloids (1) Alpha Blockers (1) Antibiotics (1) (-) Anticholinergics (1) Barbiturates (3) Benzodiazepines (2) Beta-2 Andrenergic Agonists (1) Beta Blockers (1) Cyanide (1) Diuretics (1) NSAIDs (1) Opiates/Opioids (4) Other (24) Phenothiazines (3) Sedative-Hypnotics (1) Sulfonylureas (2) Toxic Elements (7) Tricyclic (3) (-) Vasoconstrictors (1) Test Test Name 4350SP Tetrahydrozoline, Serum/Plasma 4680SP Trihexyphenidyl, Serum/Plasma