Probably the same reason athletic tape is popular. If it's legal and athletes think it will give them an edge they'll use it regardless if there's no proof to back it up. Placebo is one of the strongest drugs there are.
'Two sources with knowledge of test have told ESPN that Povetkin tested positive for meldonium with title fight vs Wilder a week away.' - Dan Rafael, twitter I was REALLY looking forward to this fight.
haha Luis Ortiz is next to test positive. Atleast Wilder & Fury are definitely clean fighters. respect. Wlad has poked around with Riods in the past also.
Russians are being tested. https://uk.news.yahoo.com/apnewsbreak-russian-soccer-team-surprise-meldonium-test-230119953.html
I'm not convinced he was that much in the wrong if he used the same drug as Sharapova. Did he deny taking Meldonium? She got screwed. She had taken it for ten years and then it was banned recently. Something's up.
The maker of the drug said that it was designed for short term use and that there is no way the drug should have properly been taken over years.