catechu

(kat'e-choo, kat'e-ku) [East Indian name.] (Br.) Gambir (U.S.), a dried extract of the leaves and young shoots of Uncaria {Our oup aria) gambier, employed as an astringent in diarrhea in doses of gr. 5-15 (0.3-1.0) c. ni'gnim (B.A.), black catechu, cutch, an extract of the heart wood of Acacia catechu, employed as an astringent in diarrhea in doses of gr. 5-30 (0.3- i.o). c. pal'lidum, the official catechu (Br.) or gambir (U.S.).