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 (2) Serum or Plasma (2) Test Area Therapeutics (2) Test Category Acids (1) Analgesics (6) Anesthetics (3) Antidepressants (4) Antiepileptics/Antiseizures (3) Antihistamines (1) Antihypertensives (3) Antimicrobials (1) Antineoplastics (1) Antiparkinsons (1) Antipsychotics (6) Antirheumatics (1) Biomarkers (2) Bronchodilators (1) (-) Cholinesterase Inhibitors (1) Depressants (1) Diuretics (1) Immunosuppressants (3) Metals/Elements (6) (-) Muscle Relaxants (1) Other (1) Sedative/Hypnotics (3) Solvents (2) Stimulants (1) Sympathomimetic Amines (1) Terpenes (1) Vasodilators (1) Volatiles (4) Test Sub-Category Other (2) Test Test Name 4305B Tacrine, Blood 4487B Tizanidine, Blood