USADA announced today that Taila Santos, of Brazil, has accepted a six-month sanction for a violation of the Professional Fighters League (PFL) Anti-Doping Policy.
Santos, 31, tested positive for oxandrolone and its metabolites 17α-hydroxy-17β-methyl-2-oxa-5α-androstan-3-one (Epioxandrolone), 17α-hydroxymethyl-17β-methyl-18-nor-2-oxa-5α-androst-13-en-3-one (long term metabolite (LTM)), 17β-hydroxymethyl-17α-methyl-18-nor-2-oxa-5α-androst-13-en-3-one (LTM), noroxandrolone and tested positive for clenbuterol as the result of an out-of-competition sample collected on March 21, 2025.
Oxandrolone and clenbuterol are non–Specified Substances in the class of Anabolic Agents, which are prohibited at all times under the PFL Anti-Doping Policy (ADP) and PFL Prohibited List.
Under Section 10.2 of the current version of the PFL ADP, the period of ineligibility for the use of a prohibited substance is six months. Santos’ six-month period of ineligibility began on March 21, 2025, the date her positive sample was collected. As a result of her positive test, Santos was also removed from the Card for the PFL World Tournament event on April 11, 2025.
USADA conducts a year-round, independent anti-doping program for PFL athletes. USADA is an independent, non-profit, non-governmental agency whose sole mission is to stand with athletes to champion their right to clean sport, inspire true and healthy sport, and promote the integrity of sport. In an effort to aid PFL athletes, as well as their support team members, in understanding the rules applicable to them, USADA provides comprehensive instruction on the PFL Anti-Doping Program webpage regarding the testing process and prohibited substances, how to obtain permission to use a necessary medication, and the risks and dangers of taking supplements, as well as performance-enhancing and recreational drugs.
In addition, the agency manages a drug reference hotline, Global Drug Reference Online, conducts educational sessions, and proactively distributes a multitude of educational materials.
USADA makes available a number of ways to report the abuse of performance-enhancing drugs in sport in an effort to protect clean athletes and promote clean competition. Any tip can be reported using the USADA Play Clean Tip Center.
For more information or media inquiries, email media@usada.org.