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 (2) Fluid (1) Serum or Plasma (2) Tissue (1) (-) Urine (2) Test Area Therapeutics (2) Test Category Antihypertensives (1) Antipsychotics (1) Test Sub-Category Anticholinergics (1) (-) Calcium Channel Blockers (1) Opiates/Opioids (1) Other (9) (-) Phenothiazines (1) Tricyclic (1) Test Test Name 4461U Thioridazine and Metabolite, Urine 4770U Verapamil, Urine