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) Test Area Therapeutics (1) Test Category (-) Antihistamines (1) Test Sub-Category Biomarkers (1) (-) H2 Antagonists (1) Other (22) Synthetic Cathinone (3) Test Test Name 2068B Famotidine, Blood