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) Alpha Blockers (1) Antibiotics (1) Anticholinergics (1) Anticoagulants (1) Antifungals (1) Antihistamines (1) Antimalarials (1) Antiparasitics (1) Barbiturates (2) Benzodiazepines (2) Beta Blockers (3) Biomarkers (1) (-) Calcium Channel Blockers (2) Cyanide (1) Diuretics (1) Dopamine Antagonists (1) Non-Barbiturate Sedative Hypnotics (1) Non-Benzodiazepines (1) NSAIDs (1) Opiates/Opioids (4) Organochlorides (1) Other (67) Phenothiazines (1) Sedative-Hypnotics (1) Selective Serotonin Reuptake Inhibitors (SSRI) (3) Serotonin-Norepinephrine Reuptake Inhibitors (SNRI) (3) Stimulants (1) Sympathomimetic Agents (1) Toxic Elements (10) Trace Elements (2) Tricyclic (3) Vasoconstrictors (1) Test Test Name 4770B Verapamil, Blood 4770TI Verapamil, Tissue