Meldonium (also known as Mildronate, THP, MET-88, Mildronāts or Quaterine[1]) is a clinically used anti-ischemic drug that is currently manufactured and marketed by Grindeks, a pharmaceutical company based in Latvia.[2] It is used in Lithuania and the Russian Federation,[3] but is not approved by the Food and Drug Administration for use in the United States. It is on the World Anti-Doping Agency (WADA) list of banned substances.