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) (3) (-) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (2) Sample Type Blood (1) Fluid (1) Serum or Plasma (1) (-) Tissue (1) (-) Urine (1) Test Area Therapeutics (2) Test Category Analgesics (2) Antacids (1) Antianxiety (1) (-) Antidepressants (2) Antiepileptics/Antiseizures (3) Antigout Agents (1) Antihistamines (2) Antihypertensives (1) Antimicrobials (1) Antipsychotics (2) Benzodiazepines (1) Muscle Relaxants (2) Other (1) Psychoactives (2) Sedative/Hypnotics (4) Stimulants (4) Volatiles (1) Test Sub-Category Selective Serotonin Reuptake Inhibitors (SSRI) (2) Test Test Name 1272TI Citalopram, Tissue 1272U Citalopram, Urine