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) (3) Sample Type (-) Blood (2) Fluid (1) Serum or Plasma (2) (-) Tissue (1) Urine (1) Test Area Therapeutics (3) Test Category Antihypertensives (3) Test Sub-Category Alkaloids (1) Alpha-2 Adrenergic Antagonists (1) Alpha/Beta Adrenergic Agonists (1) Alpha Blockers (1) Antibiotics (1) Antifungals (1) Antihistamines (1) Antimalarials (1) Benzodiazepines (2) (-) Beta Blockers (3) Diuretics (1) Dopamine Antagonists (1) Non-Benzodiazepines (1) NSAIDs (1) Opiates/Opioids (3) Other (47) Selective Serotonin Reuptake Inhibitors (SSRI) (3) Serotonin-Norepinephrine Reuptake Inhibitors (SNRI) (3) Stimulants (1) Sympathomimetic Agents (1) Tricyclic (1) Vasoconstrictors (1) Test Test Name 4000B Propranolol, Blood 4000TI Propranolol, Tissue 4482B Timolol, Blood