Very few athletes fail drug tests in Olympic competition. In fact, since drug controls were instituted in 1968, only 52 doping cases have been detected:

Site, year

Tests

Athletes/Sport/Drug

Winter Games

Grenoble, 1968

86

None

Sapporo, 1972

211

1/Hockey/Ephedrine

Innsbruck, 1976

390

1/Nordic skiing/Ephedrine

1/Hockey/Codeine

Lake Placid, 1980

440

None

Sarajevo, 1984

424

1/Nordic skiing/Methandienone

Calgary, 1988

492

1/Hockey/Testosterone

Albertville, 1992

522

None

Lillehammer, 1994

529

None

Nagano, 1998

621

None

SUMMER Games

Mexico City, 1968

667

1/Modern pentathlon/Alcohol

Munich, 1972

2,079

2/Weightlifting/Amphetamine,ephedrine

1/Judo/Amphetamine

2/Cycling/Coramine

1/Basketball/Ephedrine

1/Swimming/Ephedrine

Montreal, 1976

786

8/Weightlifting/Anabolic steroids (7), femcamfamine

1/Track and field/Anabolic steroids

1/Shooting/Amphetamine

1/Yachting/Phenylpropanolmine

Moscow, 1980

645

None

Los Angeles, 1984

1,507

5/Weightlifting/Nandrolone

3/Track and field/Nandrolone (2), testosterone

3/Volleyball/Ephedrine, testosterone, metenolone

1/Wrestling/Metenolone

Seoul*, 1988

1,598

5/Weightlifting/Furosemide (2), stanozolol (2), pemoline

2/Modern pentathlon/Caffeine, propanolol

1/Wrestling/Furosemide

1/Judo/Furosemide

1/Track and field/Stanozolol

Barcelona, 1992

1,848

4/Track and field/Clenbuterol (2), norephedrine, mesocarb

1/Volleyball/Strychnine

Atlanta, 1996

1,923

1/Track and field/Methandienone

1/Track and field/Stanozolol

*Three gold medalists and a bronze medalist were stripped of their medals: Ben Johnson of Canada, track and field; Mitko Grubler and Angel Guenchev of Bulgaria, weightlifting; Kerrith Brown of Great Britain, judo (bronze).

Source: IOC