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 Antispasmodics (1) Test Sub-Category (-) Antispasmodics (1) Benzodiazepines (1) NSAIDs (1) Opiates/Opioids (9) Other (5) Proton-Pump Inhibitors (1) Test Test Name 3266SP Oxybutynin, Serum/Plasma