Former Wales wing Adrian Hadley has admitted taking amphetamines with two unnamed team-mates before a Five Nations championship match against Scotland in 1986.
In an extract from his forthcoming autobiography in today's Daily Mail, Hadley said the trio took the stimulants an hour before kickoff. Hadley scored the only try for Wales in a 22-15 victory that denied Scotland a grand slam.
Hadley said he had been offered the drug by one of his team mates after complaining he had felt miserable before the match in Cardiff.
"Unbeknown to all three of us, we had taken a drug called Dexedrine. I hadn't a clue what it was for but I made inquiries recently and discovered it was an amphetamine," he said.
"It seems that I had been introduced to what is commonly known as 'speed' and was apparently used by youngsters keen to rave the night away".
Hadley said he began to feel better as the game progressed. "I had so much energy and was still flying at the end of the match," he said. "Normally after an international, you are physically tired, compounded by the stress and emotion of the occasion.
"But on that afternoon I felt I could have gone out and played another full-blown international. I felt like a million-dollar man," he said.