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) (2) (-) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (2) Sample Type (-) Blood (2) Serum or Plasma (3) Urine (1) Test Area (-) Therapeutics (2) Test Category Cholinesterase Inhibitors (1) Expectorants (1) Test Sub-Category Alpha-2 Adrenergic Agonists (1) Antivirals (1) GABA Analogues (1) (-) Other (2) Sulfonylureas (1) Test Test Name 2148B Galantamine, Blood 2185B Guaifenesin, Blood