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) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (3) Sample Type Blood (1) (-) Serum or Plasma (1) Urine (2) Test Area Therapeutics (1) Test Category Antipsychotics (1) Test Sub-Category Anticholinergics (1) Antiparasitics (1) Barbiturates (1) Calcium Channel Blockers (1) Non-Barbiturate Sedative Hypnotics (1) Other (10) (-) Phenothiazines (1) Sedative-Hypnotics (1) Tricyclic (2) Test Test Name 4461SP Thioridazine and Metabolite, Serum/Plasma