Clean Boxing Program: Clenbuterol

Clenbuterol is a potent bronchodilator with anabolic effects, making it a declared enemy of clean sport.

Strictly prohibited by VADA (Voluntary Anti-Doping Association) and WADA (World Anti-Doping Agency), its ability to enhance strength and muscle mass places it at the center of controversy. Although it can enter the body through contaminated meat, its presence in a boxer’s system unleashes a storm of consequences: sanctions, suspensions, and irreparable damage to reputation.

Why is it Prohibited?
Clenbuterol is classified by WADA as an anabolic agent / β₂‑agonist, illicitly used to increase muscle mass, reduce fat, and facilitate weight loss.
Its use is strictly prohibited in any quantity in competitions regulated by VADA, including a wide range of combat sports.
Consequences for the Boxer
Suspensions: Usually between 6 months and 2 years, depending on the anti-doping organization.
Loss of titles and results: And even nullification of bouts (e.g., the Parra case).
Reputational risk: Damaging the athlete’s credibility and future trust from promoters and sponsors.
New WADA rules: As of June 1, 2019, an “atypical” threshold was introduced, allowing athletes with very low traces attributable to contaminated meat in high-risk areas to be exonerated.
WBC and VADA protocols: Include educational programs and allow for contextual analysis before automatic sanctions.

Clenbuterol is a prohibited substance under WADA/VADA due to its potential for physical performance enhancement. In boxing, high-profile cases have demonstrated how a detection, even of low levels, can influence outcomes, especially in contexts where food contamination is common. Recent regulations provide more room for defense, but the responsibility remains with the athlete: avoid risks, document consumption, and cooperate with anti-doping organizations.

If you wish to view the list of prohibited substances issued by VADA, you can consult the following link:  https://wbcboxing.com/wp-content/uploads/VADA-Prohibited-List-2025.pdf