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) Fluid (1) Serum or Plasma (1) (-) Urine (1) Test Area Therapeutics (1) Test Category Analgesics (5) Antidepressants (3) (-) Antidiabetics (1) Antiepileptics/Antiseizures (1) Antihypertensives (1) Antipsychotics (1) Hallucinogens (4) Immunosuppressants (1) Muscle Relaxants (1) NPS/Designer Drugs (1) Sedative/Hypnotics (2) Solvents (2) Stimulants (3) Volatiles (1) Test Sub-Category Other (1) Test Test Name 2740U Metformin, Urine