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 (1) Serum or Plasma (1) (-) Urine (1) Test Area (-) Therapeutics (1) Test Category Antacids (1) Test Sub-Category Alkaloids (1) Alpha-2 Adrenergic Antagonists (1) Alpha/Beta Adrenergic Agonists (1) Antibiotics (1) (-) Antihistamines (1) Antimalarials (1) Benzodiazepines (1) Beta Blockers (1) Biomarkers (1) Non-Benzodiazepines (1) Opiates/Opioids (4) Other (14) Selective Serotonin Reuptake Inhibitors (SSRI) (1) Serotonin-Norepinephrine Reuptake Inhibitors (SNRI) (1) Sympathomimetic Agents (1) Tricyclic (1) Vasoconstrictors (1) Test Test Name 4085U Ranitidine, Urine