Food safety – Clenbuterol

This notification serves to remind all athletes – teams and riders of the regulations applying to Clenbuterol.


Clenbuterol is an anabolic agent, included on the WADA Prohibited list since 2004 and there is no threshold under which it is allowed. Any presence of Clenbuterol in a urine sample thus constitutes an anti-doping rule violation under the World Anti-Doping Code and the UCI Anti-Doping Rules.

Furthermore, Clenbuterol being qualified as a 'non-specified' substance as per the Prohibited List, a provisional suspension is mandatory as soon as an athlete is notified of a positive finding.

China and Mexico

It is generally acknowledged that in certain countries a risk of meat contaminated by Clenbuterol can exist and produce, in specific conditions, a positive sample from an athlete.

WADA has issued specific warnings about this problem in China and Mexico.

Consequently, the UCI reiterates its recommendations to athletes and teams to avoid eating meat in these countries. All athletes must heed this advice.