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 Anesthetics (3) Antianxiety (3) Antiarrhythmics (5) Antidiabetics (4) Antiepileptics/Antiseizures (2) Antineoplastics (3) Antipsychotics (3) Antithyroids (2) Carbonic Anhydrase Inhibitors (1) Immunosuppressants (4) Muscle Relaxants (6) (-) NMDA Antagonists (2) Sedative/Hypnotics (3) Stimulants (2) Test Sub-Category Dopamine Antagonists (3) (-) Other (2) Test Test Name 2581B Memantine, Blood 2581SP Memantine, Serum/Plasma