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) Serum or Plasma (1) (-) Urine (1) Test Area Therapeutics (2) Test Category Analgesics (4) Antiarrhythmics (1) (-) Anticholinergics (2) Antidepressants (6) Antiepileptics/Antiseizures (2) Antihistamines (1) Antineoplastics (1) Muscle Relaxants (2) Pesticides/Insecticides (3) Solvents (2) Terpenes (1) Vasodilators (1) Volatiles (9) Test Sub-Category Other (2) Test Test Name 3957B Procyclidine, Blood 3957U Procyclidine, Urine