Uva ursi. The leaves of Arctostaphylos uva ursi Sprengel (Nat. Ord. Ericaceae). (IT. S. P.) Feuilles de busserole, Fr.; Bärentraubenblätter, Ger.

Extractum Uvae Ursi

Extract of uva ursi. Dose, gr. j—gr. v.

Extractum Uvae Ursi Fluidum

Fluid extract of uva ursi. Dose, 3 ss—ij.

Composition

Uva ursi contains a bitter, neutral, crystallizable substance, arbutin; a very bitter amorphous principle, ericolin; and a tasteless, crystallizable, neutral principle, ursone. It is rich in gallic and tannic acids. Its therapeutical properties are due to these several constituents.