“…The ancient Nahuatl name for the fruits, "cochitzápotl", can be translated in "sleepy zapote" or "sleep-producing zapote" (Lozoya and Enríquez, 1981). The decoction of the leaves and seeds from this plant has been widely used to treat anxiety, insomnia and hypertension in Mexican traditional medicine (Martinez, 1951;Rizvi et al, 1985;Vidrio and Magos, 1991;Hernández, 1993;Garzón-de la Mora et al, 1999). Several investigations have proposed that this plant possess cardiovascular and central nervous system pharmacological effects, producing peripheral vaso-relaxing activity as well as hypnotic and sedative effects.…”