Justin Niessner Date created. My ADHD has not been a problem since I was nine or ten years old - I was on Ritalin to mitigate the condition for roughly a year but after I was taken off the medication it has not ever been a problem in day-to-day life. Pin On Niall Horan By Fraser Sherman Updated September 16 2021. . For the young person with ADHD who has looked forward to a military career the possibility of being disqualified from such service can be disappointing. Ive looked all over the ADF site and it was very vague on what sort of mental disorders and medications are allowed. If you start an application our team will be able to give you an answer once they have checked your medical records and have taken into account any other information that may be required. However because ADHD is not disqualifying per se individuals who want to serve in the military are encouraged to pursue this option along with other career possi...