The World Anti-Doping Agency has announced the 2026 List of Prohibited Substances and Methods, the 2026 Summary of Major Modifications and Explanatory Notes and the 2026 Monitoring Program. The List of Prohibited Substances and Methods will be enacted on 1 January 2026.

Major modifications for 2026

As outlined in the 2026 Summary of Major Modifications and Explanatory Notes, the major modifications for 2026 include the following:   

• Esters of the prohibited steroids are also prohibited, according to S.1.1.
• It was clarified that withdrawal of blood or blood components is prohibited except for 1) analytical purposes including medical tests or Doping Control, or for 2) donation purposes performed in a collection center accredited by the relevant regulatory authority of the country in which it operates. The Platelet-Rich Plasma (PRP) and related procedures remain not prohibited.
• The non-diagnostic use of carbon monoxide (CO) was added to the Prohibited Methods as a new section, M 1.4. It can increase erythropoiesis under certain conditions. The use of carbon monoxide for diagnostic purposes, such as total haemoglobin mass measurements or the determination of pulmonary diffusion capacity, is not prohibited. The current wording was chosen to differentiate between illicit use and the intake resulting from natural combustion processes (e.g. smoking), the environment (e. g. exhaust gases) or diagnostic procedures.
• Cell components (e.g. nuclei and organelles such as mitochondria and ribosomes) are added to the existing prohibition of using normal or genetically modified cells 

Check the 2026 List of Prohibited Substances and Methods. Click here for the French version.

Check the 2026 Summary of Major Modifications and Explanatory Notes. Click here for the French version.

Check the 2026 Monitoring Program. Click here for the French version.