an analeptic drug stimulates the central nervous system.
Examples of analeptic
analeptic
An analeptic, in medicine, is a central nervous systemstimulant medication.
From the en.wikipedia.org
Other analeptic drugs like Modafinil and Armodafinil are prescribed to treat narcolepsy, hypersomnia, shift work sleep disorder, and other conditions causing Excessive Daytime Sleepiness.