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Nootropics ( pron.: / n oʊ . ə ˈ t r ɒ p ɨ k s / noh-ə- TROP -iks ), also referred to as smart drugs , memory enhancers , neuro enhancers , cognitive enhancers , and intelligence enhancers , are drugs , supplements , nutraceuticals , and functional foods that purportedly improve mental functions such as cognition , memory , intelligence , motivation , attention , and concentration. [ 1 ] [ 2 ] The word nootropic was coined in 1972 by the Romanian Dr.