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 (1) Serum or Plasma (1) (-) Urine (1) Test Area Therapeutics (2) Test Category Stimulants (2) Test Sub-Category (-) Alkaloids (2) Alpha-2 Adrenergic Antagonists (2) Alpha/Beta Adrenergic Agonists (2) Alpha Blockers (1) Antibiotics (2) Anticholinergics (2) Anticoagulants (1) Antifungals (1) Antihistamines (2) Antimalarials (2) Antiparasitics (1) Barbiturates (2) Benzodiazepines (3) Beta Blockers (3) Biomarkers (2) Calcium Channel Blockers (2) Cyanide (2) Diuretics (1) Dopamine Antagonists (1) Non-Barbiturate Sedative Hypnotics (1) Non-Benzodiazepines (2) NSAIDs (1) Opiates/Opioids (8) Organochlorides (1) Other (94) Phenothiazines (2) Sedative-Hypnotics (1) Selective Serotonin Reuptake Inhibitors (SSRI) (3) Serotonin-Norepinephrine Reuptake Inhibitors (SNRI) (3) Stimulants (1) Sympathomimetic Agents (2) Synthetic Cannabinoids (1) Toxic Elements (21) Trace Elements (3) Tricyclic (5) Vasoconstrictors (2) Test Test Name 4380B Theobromine, Blood 4380U Theobromine, Urine