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 Antihypertensives (1) Test Sub-Category (-) Alpha-2 Adrenergic Agonists (1) Antihistamines (1) Antimalarials (1) Benzodiazepines (5) Cannabinoids (2) CNS Stimulants (1) Cocaine (3) Designer Benzodiazepines (1) Macrominerals (2) Opiates/Opioids (2) Other (16) Phenothiazines (2) Selective Serotonin Reuptake Inhibitors (SSRI) (1) Toxic Elements (3) Trace Elements (7) Tricyclic (2) Test Test Name 1275U Clonidine, Urine