Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type Blood (1) (-) Serum or Plasma (1) Urine (1) Test Area Therapeutics (1) Test Category Analgesics (9) Antacids (1) Antianxiety (1) Antiepileptics/Antiseizures (1) Antipsychotics (1) (-) Antispasmodics (1) Drugs of Abuse (1) Muscle Relaxants (1) Other (1) Pesticides/Insecticides (1) Test Sub-Category Antispasmodics (1) Test Test Name 3266SP Oxybutynin and Metabolite, Serum/Plasma