An alkaloid obtained from the betel nut (Areca catechu), Fruit of a palm Tree. It is an agonist at both muscarinic and Nicotinic Acetylcholine Receptors. It is used in the form of various Salts as a ganglionic stimulant, a parasympathomimetic, and a vermifuge, especially in veterinary practice. It has been used as a euphoriant in the Pacific Islands.