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 Exposure (6) (-) Therapeutics (2) Test Category Analgesics (13) Anesthetics (6) Antidepressants (14) (-) Antidiabetics (2) Antiepileptics/Antiseizures (9) Antihistamines (2) Antihypertensives (6) Antimicrobials (3) Antineoplastics (2) Antiparkinsons (3) Antipsychotics (15) Antirheumatics (2) Bronchodilators (4) Cholinesterase Inhibitors (2) Diuretics (2) Immunosuppressants (5) Muscle Relaxants (2) Sedative/Hypnotics (6) Stimulants (3) Sympathomimetic Amines (3) Vasodilators (2) Test Sub-Category Sulfonylureas (2) Test Test Name 4490SP Tolazamide, Serum/Plasma 4500SP Tolbutamide, Serum/Plasma