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 (24) Antianxiety (4) Anticholinergics (3) Antidepressants (4) Antidiabetics (8) Antidiarrheals (2) Antiemetics (2) Antiepileptics/Antiseizures (19) Antihistamines (10) Antihypertensives (13) Antimicrobials (23) Antineoplastics (1) Antipsychotics (9) Antitussives/Cough Suppressants (7) Carbonic Anhydrase Inhibitors (1) Cholinesterase Inhibitors (2) Diuretics (1) Drugs of Abuse (1) Expectorants (3) Immunosuppressants (5) Laxatives (1) Muscle Relaxants (11) (-) NMDA Antagonists (2) Other (1) Retinoids (2) Sedative/Hypnotics (16) Stimulants (3) Test Sub-Category Other (2) Test Test Name 2581B Memantine, Blood 2581SP Memantine, Serum/Plasma