Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Headspace Gas Chromatography (GC) (2) (-) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (2) Sample Type Blood (1) Urine (1) Test Area Therapeutics (2) Test Category Alcohols (2) Analgesics (18) Anesthetics (8) Antianxiety (2) Antiarrhythmics (4) Anticholinergics (6) Antidepressants (25) Antiemetics (1) Antiepileptics/Antiseizures (6) Antihistamines (3) Antihypertensives (2) Antimicrobials (1) Antipsychotics (13) Antitussives/Cough Suppressants (3) Decongestants (4) Depressants (13) (-) Diagnostic Aids (2) Diuretics (1) Drugs of Abuse (4) Muscle Relaxants (4) NPS/Designer Drugs (2) Other (1) Sedative/Hypnotics (11) Stimulants (6) Vasodilators (1) Volatiles (1) Test Sub-Category Other (2) Test Test Name 9249B Pseudoephedrine vs Ephedrine Differentiation Screen, Blood 9249U Pseudoephedrine vs Ephedrine Differentiation Screen, Urine