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 Analgesics (8) Antidepressants (4) (-) Antidiabetics (2) Antiepileptics/Antiseizures (4) Antihistamines (2) Antihypertensives (6) Antimicrobials (2) Antineoplastics (2) Antiparkinsons (2) Antipsychotics (2) Antirheumatics (2) Bronchodilators (3) Cholinesterase Inhibitors (2) Diuretics (2) Immunosuppressants (5) Muscle Relaxants (2) Sedative/Hypnotics (4) Stimulants (2) Sympathomimetic Amines (2) Vasodilators (2) Test Sub-Category Sulfonylureas (2) Test Test Name 4490SP Tolazamide, Serum/Plasma 4500SP Tolbutamide, Serum/Plasma