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) Sample Type Blood (1) (-) Serum or Plasma (1) Urine (1) Test Area (-) Therapeutics (1) Test Category Analgesics (13) Antacids (2) Antianxiety (2) Antiarrhythmics (4) (-) Anticholinergics (1) Antidepressants (6) Antidiabetics (2) Antiepileptics/Antiseizures (13) Antihistamines (2) Antihypertensives (5) Antimicrobials (3) Antineoplastics (1) Antipsychotics (5) Antispasmodics (1) Appetite Suppressants (1) Decongestants (2) Immunosuppressants (1) Muscle Relaxants (1) Opiate/Opioid Antagonists (2) Other (1) Sedative/Hypnotics (3) Stimulants (2) Vasodilators (1) Test Sub-Category Other (1) Test Test Name 3957SP Procyclidine, Serum/Plasma