The athlete returned an adverse analytical finding (AAF) for a prohibited substance in a urine sample provided on 19 July 2019 after competing at the Nur-Sultan 2019 World Para Powerlifting Championships in Kazakhstan.
Panna received an AAF for metandienone metabolite, which is included on the World Anti-Doping Agency (WADA) 2019 Prohibited List under the class S1.1A Exogenous Anabolic Androgenic Steroids. 

As a result of her violation, the athlete from Thailand will be ineligible for competition for four years from 19 July 2019 to 18 July 2023.

Each athlete is strictly liable for the substances found in his or her sample. An ADRV occurs whenever a prohibited substance (or its metabolites or markers) is found in his or her bodily specimen, whether or not the athlete intentionally or unintentionally used a prohibited substance or was negligent or otherwise at fault. 

As a signatory of the World Anti-Doping Code (WADC), the IPC remains committed to a doping-free sporting environment at all levels. The IPC has established the IPC Anti-Doping Code (Code) in compliance with the general principles of the WADC, including the WADC International Standards, expecting that, in the spirit of sport, it will lead the fight against doping in sport for Athletes with an impairment.