An analeptic drug stimulates the central nervous system.    From Wordnet, Princeton University. 

Together with another, five years older pharmacologist, named Folke Serin, I studied the action of another "analeptic", i.e. nikethamide, and discovered a circadian rhythm in its lethal action.    From Wordnik.com.  [Arvid Carlsson - Autobiography] Reference

Cool and soothing, the analeptic juice quickly took away the stinging.    From Wordnik.com.  [Mid Flinx]

I had planned the synthesis of this compound with the intention of obtaining a circulatory and respiratory stimulant an analeptic.    From Wordnik.com.  [The Volokh Conspiracy » Seeking Examples:] Reference

Here at Pinglewood we plan to combat the gloom with music that is warm and analeptic, tinged with melancholy, but ultimately uplifting.    From Wordnik.com.  [Pinglewood.com] Reference

It also acts as an analeptic to the production of glycosaminoglycans needed for the cartilage to bind water (The cartilage is 65\% water).    From Wordnik.com.  [Purpleocity.net] Reference

Punctually a ungratefully it carillonneur from lapidary to stripy overprotection, hong kong is pejoratively bacteriostatic a satisfyingly analeptic pentateuch.    From Wordnik.com.  [Rational Review] Reference

All food of easy and quick digestion is an analeptic, whence it follows that the same substance which is an analeptic to one person, may prove indigestible and innutritious for another.    From Wordnik.com.  [Aphrodisiacs and Anti-aphrodisiacs: Three Essays on the Powers of Reproduction] Reference