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 Drugs of Abuse (1) Test Category Analgesics (2) Antacids (1) Antianxiety (1) Antidepressants (1) Antiepileptics/Antiseizures (2) Antihistamines (2) Antihypertensives (1) Antimicrobials (1) Antipsychotics (1) (-) Benzodiazepines (1) Muscle Relaxants (1) Other (1) Psychoactives (1) Sedative/Hypnotics (3) Stimulants (3) Volatiles (1) Test Sub-Category Designer Benzodiazepines (1) Test Test Name 1271U Clonazolam & 8-Aminoclonazolam (Qualitative), Urine