Pill with imprint LU H12 is White, Eight-sided and has been identified as Amlodipine Besylate 5 mg. It is supplied by Lupin Pharmaceuticals, Inc. Amlodipine is used in the treatment of raynaud's syndrome; high blood pressure; angina; heart failure; coronary artery disease and belongs to the drug class calcium channel blocking agents .Education PhD, University of Minnesota (LAAS), 2014 Biography Dr. Lu Hu is now on the faculty at the University of Montana.