Mangosteen.—The pericarp of the fruit of the Garcinia Mangostana L. (Fam. Guttiferae). It is sometimes substituted for bael fruit (see Belae Fructus, Br., Part I). It is an active astringent, and has been used as such locally in various catarrhs, and also in diarrhea and in leucorrhea. Ambrose has used the toasted and pulverized rind of mangosteen in the treatment of tropical dysentery with asserted benefit. He gives doses of one drachm (4 Gm.) every two hours. The activity of the drug appears to reside in the neutral principle mangostin. Dose, of fluidextract, from half to one fluidrachm (1.8-3.75 mils).