"Is it safe to give preschoolers Ritalin, the popular attention deficit disorder drug?

The first long-term government study of that age group warns of side effects with the stimulant drug, which isn't recommended for children under age 6.
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The research was done because of concerns over reports that soaring numbers of preschoolers are being given psychiatric drugs, including Ritalin."

Pros, Cons From Ritalin in Preschoolers