HYPOCISTIS, in the materia medica, an inspissated juice obtained from the sessile asarum, much resembling the true Egyptian acacia. They gather the fruit while unripe, and express the juice, which they evaporate over a very gentle fire, to the consistency of an extract, and then form into cakes, and expose them to the sun to dry. It is an astringent of considerable power; is good against diarrhoeas and hemorrhages of all kinds; and may be used in redulent gargarisms in the manner of the true acacia; but it is very rarely met with genuine in our shops, the German acacia being usually sold under its name.