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 (3) Serum or Plasma (3) (-) Urine (2) Test Area Therapeutics (2) Test Category Antiparkinsons (1) Antipsychotics (1) Test Sub-Category (-) Anticholinergics (1) Opiates/Opioids (1) Other (7) (-) Phenothiazines (1) Tricyclic (1) Test Test Name 4461U Thioridazine and Metabolite, Urine 4680U Trihexyphenidyl, Urine