If a player with a legitimate medical condition needs to use a prohibited substance or method, they will need to apply for a Therapeutic Use Exemption (TUE).
This is only accepted if there are no other suitable permitted medications or treatments that can be used, and there is a strict, detailed process to determine this.
Players can find out more information about the TUE process on the UKAD website here and use the TUE Wizard to find out whether they need to apply for a TUE and who to submit their application to.