Theophylline is no longer used as a respiratory analeptic in newborn infants. Jouvet was the researcher who first developed the analeptic drug Modafinil. The term "analeptic" typically refers to respiratory analeptics (for example, doxapram). Tacrine was also described as an analeptic agent used to promote mental alertness. An analeptic, in medicine, is a central nervous system stimulant.