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 (-) Anticholinergics (1) Drugs of Abuse (3) Drugs of Abuse, Therapeutics (2) Hallucinogens (2) Therapeutics (2) Test Sub-Category Other (1) Test Test Name 3957SP Procyclidine, Serum/Plasma