British sprinter Dwain Chambers has had all his performances since 1 January, 2002 annulled by the IAAF, athletics' world governing body.
Chambers has quickly resumed his status as British number one
The decision means he will lose his European 100m gold medal and a European record 9.87 seconds he ran that year.
The IAAF's decision follows Chambers' admission to BBC Sport late last year that he used the steroid THG 18 months before he was caught in August 2003.
Following a positive test, Chambers was banned for two years in February 2004.
The IAAF initially disqualified all his performances achieved between 1 August 2003 and the end of the season in September that year - including the World Championships where he placed fourth.
But on completing his punishment last November, Chambers admitted he had been cheating from the beginning of 2002.
An IAAF investigation has now yielded further action, two weeks after Chambers returned to competition in Gateshead after agreeing a deal to repay the IAAF and UK Athletics prize money won during the period he was taking drugs.
The body's decision also means Chambers and Great Britain team-mates Christian Malcolm, Marlon Devonish and Darren Campbell will lose the European golds they won in the 4x100m relay in 2002.
As well as being stripped of the individual European title he claimed in Munich in August 2002 in a championship record of 9.96secs, Chambers also saw his results at the European Cup two months earlier cancelled.
Chambers will lose his European Championship gold
He won the 100m in Annecy and was also a member of the triumphant 4x100m squad, helping the side achieve a narrow overall victory and qualify for the IAAF World Cup in Madrid.
His fifth position there and second place at the World Athletics final in Paris on 14 September, when he equalled Linford Christie's European
record of 9.87secs, have also been struck from the record books.
However, the IAAF decided not to punish individual World Cup 2002 contestants - accepting the GB squad members suffered through no fault of their own because of Chambers' actions.
The IAAF emphasised that since the points obtained by Chambers in the European Cup have been annulled, the GB team would not have been eligible to compete in Madrid.
"As a consequence, all their points obtained in Madrid, will now also be
annulled but their individual performances remain valid," said an IAAF
statement, which means Jonathan Edwards' triple jump victory is still valid.
The European Athletic Association will now take its own action and confirm revised results of the European Cup and European Championship meetings, reallocating medals.
Ironically, following a superb run of 10.07secs at Gateshead, Chambers
is due to make his return to international competition at next week's European Cup in Malaga.