Betel Nut (ARECA) Of use in Helminthiasis. Its alkaloid, Areolin Hydrobrom contracts the pupil, acting more promptly and energetically but of shorter duration than Eserine.
Serviceable in glaucoma.
Acts also as a salivatory like Pilocarpin.
Also increases the amplitude of pulsations of the heart and promotes the contractility of the intestines.