An analeptic, in medicine, is a central nervous system stimulant medication. The term analeptic may also refer specifically to a respiratory analeptic (for example, doxapram), a drug that acts on the central nervous system to stimulate the breathing muscles, improving respiration.[1]
Historically, the term has referred to "a restorative, or remedies proper to restore the body, when wasted or emaciated by disease or hunger."[2]