DOCTOR QUESTION - What happen if you OD on Concerta or Riddlin?

What would happen if your really have to remember something for a test and so took profusely of Concerta or Riddlin or some other focus drugs? would you become uncomfortableDOCTOR QUESTION - What happen if you OD on Concerta or Riddlin?
If you OD on Riddlin you become a Riddler, and you can appear contained by Batman movies.
If you overdose on ANY drug, you do just that. OVERdose. It could be VERY harmful for you, and cause seriously of medical complications, including death depending on the drug. Talk to your doctor going on for a reccomended NORMAL dose before taking it. Also, pills really won't abet you remember things, only focus.