Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Colorimetry (C) (1) Gas Chromatography (GC) (1) (-) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type Blood (1) Serum or Plasma (1) (-) Urine (1) Test Area Drugs of Abuse (1) Test Category NPS/Designer Drugs (1) Test Sub-Category Alkaloids (1) Antispasmodics (1) Benzodiazepines (4) Beta Blockers (3) Biomarkers (1) CNS Stimulants (1) GABA Analogues (1) NSAIDs (3) Opiates/Opioids (1) Other (13) Selective Serotonin Reuptake Inhibitors (SSRI) (1) Serotonin-Norepinephrine Reuptake Inhibitors (SNRI) (1) (-) Stimulants (1) Sympathomimetic Agents (1) Synthetic Cathinone (1) Test Test Name 3224U NPS Stimulants (Qualitative), Urine