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) (1) Sample Type Blood (2) Fluid (1) Serum or Plasma (2) (-) Urine (1) Test Area Therapeutics (1) Test Category Sedative/Hypnotics (1) Test Sub-Category Alpha-2 Adrenergic Agonists (1) Amphetamines (1) Antiarrhythmics (1) Antimalarials (1) Antiparasitics (1) Antivirals (1) Barbiturates (1) Benzodiazepines (3) Biomarkers (1) Carboxylic Acids (3) Diuretics (2) GABA Analogues (1) (-) Hormones (1) Macrominerals (1) Metals/Elements (1) Non-Benzodiazepines (1) NSAIDs (2) Opiates/Opioids (3) Other (53) Selective Serotonin Reuptake Inhibitors (SSRI) (2) Synthetic Cathinone (1) Tetracyclics (1) Toxic Elements (4) Trace Elements (3) Tricyclic (1) Test Test Name 2604U Melatonin, Urine