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 Antihypertensives (2) Test Sub-Category Alkaloids (3) Alpha Blockers (2) Antibiotics (3) Anticholinergics (3) Barbiturates (5) Benzodiazepines (5) Beta-2 Andrenergic Agonists (1) (-) Beta Blockers (2) Diuretics (2) NSAIDs (2) Opiates/Opioids (10) Organochlorides (2) Other (57) Phenothiazines (5) Sedative-Hypnotics (2) Sulfonylureas (2) Toxic Elements (21) Tricyclic (6) Vasoconstrictors (3) Test Test Name 4482B Timolol, Blood 4482SP Timolol, Serum/Plasma