Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Gas Chromatography (GC) (2) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (2) Sample Type Blood (2) Urine (2) Test Area Postmortem (2) (-) Therapeutics (4) Test Category Analgesics (25) Anesthetics (12) (-) Antianxiety (2) Antiarrhythmics (5) Anticholinergics (6) Antidepressants (25) Antiemetics (1) Antiepileptics/Antiseizures (6) Antihistamines (3) Antihypertensives (2) Antimicrobials (1) Antipsychotics (10) Antitussives/Cough Suppressants (3) Decongestants (4) Depressants (5) (-) Diagnostic Aids (2) Muscle Relaxants (4) Sedative/Hypnotics (14) Stimulants (2) Vasodilators (1) Test Sub-Category Other (4) Test Test Name 9249B Pseudoephedrine vs Ephedrine Differentiation Screen, Blood 9249U Pseudoephedrine vs Ephedrine Differentiation Screen, Urine 9435B Doxepin and Metabolite Screen, Blood 9435U Doxepin and Metabolite Screen, Urine