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 Antihypertensives (2) Test Sub-Category Alkaloids (2) (-) Alpha-2 Adrenergic Antagonists (2) Alpha/Beta Adrenergic Agonists (2) Alpha Blockers (2) Antibiotics (5) Anticholinergics (2) Anticoagulants (3) Antifungals (2) Antihistamines (2) Antimalarials (2) Antiparasitics (2) Antivirals (1) Barbiturates (3) Benzodiazepines (4) Beta-2 Andrenergic Agonists (1) Beta Blockers (4) Calcium Channel Blockers (2) Diuretics (2) Dopamine Antagonists (2) Non-Barbiturate Sedative Hypnotics (2) Non-Benzodiazepines (2) NSAIDs (2) Opiates/Opioids (6) Other (93) Phenothiazines (2) Selective Serotonin Reuptake Inhibitors (SSRI) (4) Serotonin-Norepinephrine Reuptake Inhibitors (SNRI) (4) Sulfonylureas (2) Sympathomimetic Agents (2) Tricyclic (6) Vasoconstrictors (2) Test Test Name 4830B Yohimbine, Blood 4830SP Yohimbine, Serum/Plasma