methylphenidate(redirected from Vitamin R)
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A drug, C14H19NO2, chemically related to amphetamine, that acts as a mild stimulant of the central nervous system and is used in its hydrochloride form to treat attention deficit hyperactivity disorder and narcolepsy.
(Pharmacology) a drug that stimulates the central nervous system and is used, in the form of its hydrochloride, to treat narcolepsy as well as attention deficit disorder
meth•yl•phen•i•date(ˌmɛθ əlˈfɛn ɪˌdeɪt, -ˈfi nɪ-)
a central nervous system stimulant, C14H19NO2, used in the control of hyperkinetic syndromes and narcolepsy.