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 (1) Urine (1) Test Area Therapeutics (2) Test Category Alcohol Deterrents (1) Anesthetics (4) Antianxiety (3) Antiarrhythmics (4) Anticholinergics (4) Anticoagulants (3) Antidepressants (5) Antiepileptics/Antiseizures (10) Antipsychotics (4) Diuretics (2) Immunosuppressants (1) (-) Potassium Channel Blockers (2) Stimulants (4) Volatiles (3) Test Sub-Category (-) Other (2) Test Test Name 0275SP Dalfampridine, Serum/Plasma 0275U Dalfampridine, Urine