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 Blood (1) Serum or Plasma (1) Test Area (-) Therapeutics (2) Test Category Analgesics (16) Anesthetics (4) Antacids (3) Antiarrhythmics (4) Anticholinergics (3) Antidepressants (23) Antidiabetics (6) Antiepileptics/Antiseizures (20) Antihypertensives (14) Antimicrobials (11) Antimigraines (3) Antineoplastics (2) Antiparkinsons (2) Antipsychotics (17) (-) Antirheumatics (2) Antithrombotics (1) Bronchodilators (4) Cholinesterase Inhibitors (2) Decongestants (3) Diuretics (4) Hypoglycemic Agents (2) Immunosuppressants (7) Muscle Relaxants (2) Other (1) Sedative/Hypnotics (20) Stimulants (6) Sympathomimetic Amines (3) Vasodilators (7) Test Sub-Category Other (2) Test Test Name 4489B Tofacitinib, Blood 4489SP Tofacitinib, Serum/Plasma