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 Anticholinergics (2) Antiparasitics (1) Barbiturates (2) (-) Calcium Channel Blockers (2) Non-Barbiturate Sedative Hypnotics (1) Opiates/Opioids (1) Organochlorides (1) Other (21) Phenothiazines (2) Sedative-Hypnotics (1) Tricyclic (3) Test Test Name 4770B Verapamil, Blood 4770U Verapamil, Urine