Decoction, Mercu′′rial

Syn. Decoctum hydrargyri , D. mercuriale , L. Prep. 1. Quicksilver, 4 oz.; water, 1 pint; boil in a gla or earthen ve el for an hour, adding water to replace that lost by evaporation.— Dose. A teacupful. 2. Mercurial pill, 1 oz.; water, 1 quart; boil to a pint.— Dose. A wine-gla ful. Both were formerly taken for worms and the itch. 3. Corrosive sublimate, 1 gr.; (di olved in) spirit of wine, 30 drops; extract of sarsaparilla, 3 dr.; decoction of sarsaparilla, 8 fl. oz.; mix.— Dose. One large table-spoonful, 3 times a day; in syphilis and obstinate skin diseases.