Clean Boxing Program: Oxabolone

The World Boxing Council (WBC), through its Clean Boxing Program, along with the Voluntary Anti-Doping Association (VADA), have reinforced their fight against doping by keeping Oxabolone on the list of prohibited substances.

This measure is a response to both the safety of athletes and the protection of the sport’s integrity.

Oxabolone is a synthetic androgenic anabolic steroid derived from 19-nortestosterone. In the world of sports, it has been classified as a drug of abuse. Oxabolone falls into the category of Anabolic Agents, which means it is prohibited at all times, both in and out of competition.

Beyond the competitive advantage it offers, medical specialists warn about the side effects it can cause: severe liver damage from the steroid’s metabolism, increased cardiovascular risk including hypertension and coronary problems, hormonal imbalances that affect natural testosterone production, and psychological alterations such as aggression, anxiety, or depressive episodes.

The WBC has pointed out that, in a contact sport like boxing where a fighter’s life is at stake, these substances represent an additional and unnecessary danger.

The Clean Boxing Program, implemented by the WBC since 2016, establishes that the first 15 ranked boxers and champions on their lists are mandatorily enrolled, which means fighters can be subjected to surprise tests at any time of the year.

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