Hi, may I answer your health queries right now ?  Please type your query here...my teenage daughter who is in otherwise good health, and who has just started ritalin, is experiencing pain in her heart and is having trouble breathing.  Is this a side effect or something more sinister?
Midair Ritalin is used in attention deficit disorder, most common side effect of Ritalin is pain in the cheat, breathing difficulty. These sides effects are encountered in almost 15% of the patients on Ritalin, therefore I would advise you to switch over to another Chat Doctor.