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) Antiparkinsons (1) Test Sub-Category (-) Anticholinergics (1) Antiparasitics (1) Barbiturates (2) (-) Calcium Channel Blockers (1) Non-Barbiturate Sedative Hypnotics (1) Organochlorides (1) Other (12) Phenothiazines (1) Sedative-Hypnotics (1) Tricyclic (2) Test Test Name 4680B Trihexyphenidyl, Blood 4770B Verapamil, Blood