Scotland lock Scott MacLeod was cleared of a doping offense Monday after testing positive for an asthma medication.
The Scottish Rugby Union said MacLeod could continue to play in the Six Nations after an independent judicial committee ruled he inadvertently took a prohibited asthma medication without the required permission.
"I'm not a cheat and I'm pleased that the panel accepted that I'd used Terbutaline inadvertently and that there had been no intention to enhance sports performance," MacLeod said.
The SRU said MacLeod tested positive in a urine test for Terbutaline at Scotland training in January. The drug is legal to use if an athlete has a therapeutic use exemption (TUE).
"MacLeod did not have a current valid TUE for this drug," the SRU said in a statement. "He does have a current TUE for Salbutamol, another asthma medication.
"On that TUE form, which was issued by the Border Reivers' doctor in April 2006, it was noted that 'he was previously on Terbutaline but that it was not available at the time.'"
McLeod was told of the positive test on Feb. 14 and appeared at a disciplinary hearing last Monday. The SRU said MacLeod was given the minimum sanction of a warning and a reprimand. He could have been banned for one year.
"Hopefully other players will be a bit more savvy given what's happened to me," MacLeod said. "I want to put this behind me now and concentrate on the job in hand with the national team."
The 28-year-old MacLeod made his Scotland debut during the World Cup and has played 14 times for the national side.
Scotland is last in the Six Nations standings after three matches and lost 34-13 to Ireland on Saturday.