Concerta Side Effects | ADHD Information

Hello
This is not a personal problem, and it is not really significant whether it is to those reading thise or not so I wont explain and ill just continue onward with my question:


What are the links between pro-longed use of Concerta and sexual side affects? I know a kid that is about 14 years of age and is to embarrased to confront anyone besides myself on the situation, because I myself find personal interest on researching neurobiology on my own time and he thought i'd be able to help him.  I feel awful , for he came out with this big secret of his and i could not answer him. If someone, anyone, has information on (if not any proven-possible) links with stopping Concerta and simultaneously having seirous sexual side affects.

Thankyou For Your Time
Melissa