Name | Country | Event | Banned substance(s) | Reference(s) |
---|---|---|---|---|
Mette Jacobsen | Denmark | Swimming | Prednisolone, Prednisone | [1] |
Mahmoud Jadaan | Syria | Swimming | Metenolone | [2] |
Jörg Jaksche | Germany | Cycling | Erythropoietin (EPO) | [3] |
Laurent Jalabert | France | Cycling | Erythropoietin (EPO) | [4] |
Jiraporn Janchum | Thailand | Weightlifting | Methandienone | [5] |
Paulo Bruno Janeiro | Brazil | Swimming | Cannabis | [6] |
Michal Jarczak | Poland | Gymnastics | THC | [7] |
Daniel Jardemyr | Sweden | Ice hockey | Amphetamine | [8] |
Sabri Jari | Tunisia | Swimming | Refusal to submit to doping test | [9] |
Mohammed Jassim | Iraq | Weightlifting | Cortisone | [10] |
Ernst Jean-Joseph | Haiti | Football (soccer) | Phenmetrazine | [11] |
Leon Jeanne | Wales | Football (soccer) | [12] | |
Genevieve Jeanson | Canada | Cycling | Erythropoietin (EPO) | [13] |
Brian Dalgaard Jensen | Denmark | Cycling | Erythropoietin (EPO) | [14] |
Knud Enemark Jensen | Denmark | Cycling | Amphetamines | [15] |
Aubrey Jesseau | Canada | Canadian football | Stanozolol | [16] |
Tomas Johansson | Sweden | Sport wrestling | Anabolic steroids | [17] |
Therese Johaug | Norway | Cross-country skiing | Anabolic steroid Clostebol | [18] |
Ben Johnson | Canada | Sprinting | Stanozolol | [19] |
Gea Johnson | United States | Athletics (Hept) | Anabolic steroids | [20] |
Gea Johnson | United States | Weightlifting | Epitestosterone | [21] |
Gea Johnson | United States | Cycling | Modafinil | [22] |
Willie Johnston | Scotland | Football (soccer) | Reactivan | [23] |
Harrison Jones | United States | Diving | Cannabis | [6] |
Roy Jones Jr. | United States | Boxing | Androstenedione (Banned substance by the IBF but available legally over-the-counter in the US at time of use) | [24] |
Ahmad Joughili | Syria | Weightlifting | Metandienone | [5] |
Alberto Jose | Dominican Republic | Weightlifting | Methandienone, Dehydrochlormethyltestosterone | [5] |
Mi Naw Ju | Myanmar | Weightlifting | [5] | |
Rui Jorge | Portugal | Association football | Budesonide (ban lifted due to Sporting CP's failure to notify authorities of his medical exemption) | [25][26] |
Miguel Juarez | Venezuela | Swimming | Nandrolone | [27] |
Olivera Juric | Bosnia and Herzegovina | Weightlifting | Metandienone | [5] |
Ladislav Jusko | Czech Republic | Water polo | Cannabis | [28] |