"I'm 39 and started taking Ritalin 2 weeks ago. How do I find the right dose?"
Larry Silver, M.D.
The goal with Ritalin is to find the dose that helps the most with no side effects. The dose is not based on age or body weight. It is based on how quickly each person metabolizes the medication. Thus, it appears that 15 or 20 mg every four hours may be best for you. If this dose is working with no side effects, it might be the plan to stay on.