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 (2) Urine (2) Test Area Therapeutics (1) Test Category Analgesics (1) Test Sub-Category Alpha-2 Adrenergic Agonists (1) Antihistamines (2) Antimalarials (1) Benzodiazepines (4) Cannabinoids (4) CNS Stimulants (1) Cocaine (3) Designer Benzodiazepines (1) Diuretics (1) Macrominerals (1) NSAIDs (1) (-) Opiates/Opioids (1) Other (33) Phenothiazines (3) Selective Serotonin Reuptake Inhibitors (SSRI) (1) Toxic Elements (2) Trace Elements (4) Tricyclic (3) Test Test Name 8661B Codeine and Metabolite - Free (Unconjugated), Blood