Extract of Calum′ba

Syn. Extractum calumbæ , E. radicis c. , L. Prep. 1. (B. P.) Calumba cut small, 1; water, 5; macerate in half the water for 12 hours, strain, and pre ; macerate again with the remaining water, strain, and pre ; mix and filter the liquors, and evaporate with the heat of a water bath to pill consistency.— Dose , 2 to 10 gr. 2. (Alcoholic—Ph. Bor.) Nearly as No. 3 ( below ), but using stronger spirit; the evaporation is to be conducted at a heat not above 167° Fahr., until it acquires the consistence of a pill-ma , which, after being rendered quite dry by a very gentle heat, is to be reduced to fine powder. It should have a brownish-yellow colour, and give a turbid solution with water.— Dose , 4 to 12 gr. They are all tonic and stomachic. 3. (Spirituous—P. Cod.) As EXTRACT OF BOX . The Ph. Baden orders spirit of ·944 to be used.— Dose , 5 to 15 gr.