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 (2) Test Area Drugs of Abuse (4) (-) Therapeutics (1) Test Category Analgesics (1) Test Sub-Category Alpha-2 Adrenergic Agonists (1) Antihistamines (2) Antimalarials (1) Benzodiazepines (4) CNS Stimulants (1) Diuretics (1) NSAIDs (1) (-) Opiates/Opioids (1) Other (18) Phenothiazines (3) Selective Serotonin Reuptake Inhibitors (SSRI) (1) Tricyclic (3) Test Test Name 8661B Codeine and Metabolite - Free (Unconjugated), Blood