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) (-) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (2) Inductively Coupled Plasma/Mass Spectrometry (ICP/MS) (21) Sample Type Serum or Plasma (2) Test Area Therapeutics (2) Test Category Antidiabetics (2) Test Sub-Category Alkaloids (3) Alpha Blockers (2) Antibiotics (3) Anticholinergics (3) Benzodiazepines (5) Beta-2 Andrenergic Agonists (1) Beta Blockers (2) Diuretics (2) NSAIDs (2) Opiates/Opioids (10) Other (35) (-) Sulfonylureas (2) Tricyclic (3) Vasoconstrictors (3) Test Test Name 4490SP Tolazamide, Serum/Plasma 4500SP Tolbutamide, Serum/Plasma