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 (3) Serum or Plasma (2) (-) Urine (2) Test Area Exposure (2) (-) Therapeutics (2) Test Category Analgesics (6) Antianxiety (1) (-) Antispasmodics (1) (-) Muscle Relaxants (1) Test Sub-Category Antispasmodics (1) Other (1) Test Test Name 3248U Orphenadrine, Urine 3266U Oxybutynin, Urine