Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Gas Chromatography (GC) (1) (-) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (2) Sample Type Blood (2) Serum or Plasma (3) (-) Urine (2) Test Area Therapeutics (2) 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 Other (2) Test Test Name 1040U Cetirizine, Urine 1190U Chlorpheniramine, Urine