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) (2) Sample Type Blood (1) (-) Fluid (1) Serum or Plasma (1) Tissue (1) (-) Urine (1) Test Area Therapeutics (2) Test Category Antihypertensives (2) Test Sub-Category Alkaloids (1) Alpha-2 Adrenergic Antagonists (1) Alpha/Beta Adrenergic Agonists (1) Antibiotics (1) Anticholinergics (1) Antihistamines (1) Antimalarials (1) Benzodiazepines (1) Beta Blockers (2) Biomarkers (1) (-) Calcium Channel Blockers (2) Cyanide (1) Non-Benzodiazepines (1) Opiates/Opioids (4) Other (42) Phenothiazines (1) Selective Serotonin Reuptake Inhibitors (SSRI) (2) Serotonin-Norepinephrine Reuptake Inhibitors (SNRI) (2) Sympathomimetic Agents (1) Synthetic Cannabinoids (1) Toxic Elements (12) Trace Elements (2) Tricyclic (2) Vasoconstrictors (1) Test Test Name 4770FL Verapamil, Fluid 4770U Verapamil, Urine