Frank Travieso, who raced for the Miami Nights last season, has been given a six-month ban after testing positive for ephedrine during the Gateway Cup last September, USADA announced this week.
"After investigating, USADA determined that Travieso was using a medication containing ephedrine, which he obtained over the counter at the direction of a physician, but he lacked a valid Therapeutic Use Exemption (TUE)," the statement read.
"Under the USADA TUE Policy, an athlete has the responsibility to demonstrate that the therapeutic need to treat an acute or chronic medical condition satisfies the strict criteria within the WADA International Standard for TUEs (ISTUE). Upon review, Travieso did not qualify for a retroactive TUE."