Under the leadership of the International Olympic Committee, the Prohibited List (List) was first published in 1963. Since 2004, as mandated by the World Anti-Doping Code (Code), the World Anti-Doping Agency (WADA) is responsible for the preparation and publication of the List.
WADA convenes an independent panel of international experts to consider the composition of the List on an annual basis. A substance or method will be considered for the List if it meets any two of the following three criteria: it has the potential to enhance sport performance; it represents an actual or potential health risk to the athlete; or it violates the spirit of sport. After the List is drafted for any year, it is sent to stakeholders for comment and finally approved by the WADA Executive Committee. A new List is approved each October for implementation the following January to give athletes an opportunity to make the appropriate changes in medications.