The WADA Prohibited List may include any substance and methods that satisfy any two of the following three criteria:
It has the potential to enhance or enhances sport performance;
It represents an actual or potential health risk to the Athlete;
It violates the spirit of sport (this definition is outlined in the Code).
Substances or methods which mask the effect or detection of prohibited substances are also prohibited. In addition, a substance which has not been approved for human use is likely to be prohibited as well.
The Prohibited List is reviewed annually in consultation with scientific, medical and anti-doping experts to ensure it reflects current medical and scientific evidence and doping practices. The Prohibited List comes into effect on January 1st of each year and is published by WADA three months prior to coming into force; however, in exceptional circumstances, a substance may be added to the Prohibited List at any time.