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) (2) Sample Type (-) Serum or Plasma (2) Test Area (-) Therapeutics (2) Test Category Antidiabetics (2) Test Sub-Category Alkaloids (2) Alpha Blockers (2) Antibiotics (2) Anticholinergics (2) Barbiturates (7) Benzodiazepines (4) Beta-2 Andrenergic Agonists (1) Beta Blockers (2) Diuretics (2) NSAIDs (2) Opiates/Opioids (6) Other (35) Phenothiazines (6) (-) Sulfonylureas (2) Tricyclic (6) Vasoconstrictors (2) Test Test Name 4490SP Tolazamide, Serum/Plasma 4500SP Tolbutamide, Serum/Plasma