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) (1) (-) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type Blood (5) Fluid (2) Serum or Plasma (5) (-) Tissue (2) Urine (5) Test Area Therapeutics (2) Test Category Antiarrhythmics (1) Antidepressants (2) Antigout Agents (1) (-) Antihistamines (2) Antipsychotics (2) Muscle Relaxants (1) Sedative/Hypnotics (2) Stimulants (1) Test Sub-Category Other (2) Test Test Name 1760TI Diphenhydramine, Tissue 1817TI Doxylamine, Tissue