Paan ( पान from Sanskrit parṇa, "leaf") is a preparation combining betel leaf with areca nut and sometimes also with tobacco. It is chewed for its stimulant and psychoactive effects. After chewing it is either spat out or swallowed. Paan has many variations. Slaked lime (chunnam) paste is commonly added to bind the leaves. Some South Asian preparations include katha paste or mukhwas to freshen the breath.