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 (3) Alpha Blockers (2) Antibiotics (3) Benzodiazepines (5) Beta-2 Andrenergic Agonists (1) Beta Blockers (2) Diuretics (2) NSAIDs (2) Opiates/Opioids (10) Other (39) (-) Sulfonylureas (2) Toxic Elements (21) Tricyclic (3) Vasoconstrictors (3) Test Test Name 4490SP Tolazamide, Serum/Plasma 4500SP Tolbutamide, Serum/Plasma