Meldonium is not approved for use in the United States, Sharapova's country of residence;[REF] however, it is legal to use in Russia, the country that Sharapova represents in tennis [REF].
Sharapova said that she had been taking the drug to treat magnesium deficiency, an irregular EKG and family history of diabetes,[REF] and indicated that she had not read an email informing her that meldonium had been banned for use in sport.