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 (3) Fluid (1) Serum or Plasma (3) Tissue (1) (-) Urine (1) Test Area Therapeutics (1) Test Category Analgesics (6) Antianxiety (1) (-) Antispasmodics (1) Industrial/Environmental Toxins (1) Muscle Relaxants (1) Other (2) Test Sub-Category Antispasmodics (1) Test Test Name 3266U Oxybutynin, Urine