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 Blood (2) (-) Serum or Plasma (1) (-) Urine (1) Test Area Therapeutics (2) Test Category Sedative/Hypnotics (2) Test Sub-Category Alkaloids (2) Antibiotics (1) Antihistamines (2) Antimalarials (1) Barbiturates (2) Benzodiazepines (2) Beta Blockers (2) CNS Stimulants (3) Diuretics (1) Dopamine Antagonists (2) (-) Hormones (2) Macrominerals (2) Opiates/Opioids (17) Other (69) Phenothiazines (1) Serotonin-Norepinephrine Reuptake Inhibitors (SNRI) (2) Tetracyclics (4) Toxic Elements (1) Trace Elements (4) Test Test Name 2604SP Melatonin, Serum/Plasma 2604U Melatonin, Urine