A champion bodybuilder found dead two days after winning the Mr UK title was taking female hormone drugs, an inquest heard.
Sebastian Kakol, 39, was using the fertility drugs to build up muscle for competing in events.
Post mortem tests found the hormones along with a fatal amount of cocaine.
A neighbour heard choking sounds coming from Mr Kakol's flat and police were called when they failed to get an answer.
Coroner Geraint Williams said a pathologist made an "unusual" find - female hormone drugs in his blood system.
He said: "One of the drugs is for female fertility and the other a hormone therapy for breasts.
"Both are taken by users of anabolic steroids."
Clomiphene and Tamoxifen were discovered in blood samples taken from Mr Kakol who was a well respected nightclub doorman in Cardiff.
The inquest in Pontypridd, South Wales, heard the cause of death was cocaine toxicity.
The coroner concluded that Mr Kakol, of Cathays, Cardiff, died as a result of the abuse of drugs.
Poland born Mr Kakol died last November after celebrating winning the Mr UK bodybuilder competition in Manchester.
His brother Michal said at the time: "Sebastian lived in Cardiff for the last 12 years where he found this city to be his second home.
"He developed his passion for bodybuilding and achieved his first successes.
"He was a person of big heart who will be missed and never forgotten by his family and friends."
David Nelson, who owns the Cardiff gym where Mr Kakol trained, said: "It was a huge shock. He was in a bodybuilding show on the weekend and he won."
Mr Kakol's body was flown home to Poland for a family funeral.
