Don't fail an anti-doping test just because of paperwork! As an FAI competitor, you may be tested for doping purposes during an FAI event. If you regularly take medication prescribed by your doctor and this medication is on the World Anti-Doping Agency's (WADA) Prohibited List, you need to get a form called a TUE (therapeutic use exemption) filled out by your doctor. International level athletes must send the form to the FAI Secretariat, National level athletes send it to their National Air Sport Control.
Athletes must obtain TUEs for Prohibited Substances before they compete, otherwise they run the risk of a failed test and suspension from sport.