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 (1) (-) Serum or Plasma (1) (-) Urine (1) Test Area Therapeutics (2) Test Category Antispasmodics (2) Test Sub-Category (-) Antispasmodics (2) Benzodiazepines (2) NSAIDs (1) Opiates/Opioids (14) Other (9) Proton-Pump Inhibitors (1) Test Test Name 3266SP Oxybutynin, Serum/Plasma 3266U Oxybutynin, Urine