Michelle Carter, who last month denied Valerie Adams a third Olympic gold medal, received an exemption in Rio that allowed her to take otherwise-banned substances for medical reasons.
Carter was among the latest athletes whose therapeutic use exemptions (TUEs) were leaked by Russian hackers, revealing the American was granted permission to use three drugs before the Games began.
The shot put champion, who consigned Adams to silver, received approval from anti-doping authorities to take Medrol Dosepak and Breo Ellpita, drugs common in the treatment asthma, as well as Depo-Medrol, used to allay joint pain.
Documents released by the Fancy Bears hacking group showed Carter had previously been denied permission to take the substances, when a February 2015 application was rejected, but was subsequently granted a TUE for all three drugs during the Rio Games.
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According to the Sports Integrity Initiative website, the documents leaked did not indicate why Carter received the TUEs after initially being turned down but there was no suggestion that, in reapplying for the exemptions, she had done anything wrong.