Concerta is a new medication for ADHD. It is a central nervous system stimulant and contains methylphenidate, the same medication ingredient found in Ritalin. It comes in 18mg, 36mg and 54mg tablets and is intended to be taken once a day. The real difference is in the method of delivery. Concerta is designed to be effective in the body for 12 hours. Ritalin has an effective period of from 4-6 hours. The longer-lasting Concerta is intended to eliminate the need to frequently take the medication every 4-6 hours.
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