The article I linked addresses that, Tunesmith.

"The following is an incomplete list of sportspeople who have been involved in doping offences. It contains those who have been found, or have admitted to, having taken illegal performance-enhancing drugs, prohibited recreational drugs or have been suspended by a sporting body for failure to submit to mandatory drug testing. Athletics are not included.
Further information: Use of performance-enhancing drugs in the Olympic Games, List of doping cases in athletics, List of sportspeople cleared of doping charges, and Category: Sportspeople in doping cases by nationality"