Extract of Walnut Leaves. Syn. Extractum juglandis foliorum, L. Prep. 1. From the decoction of dried walnut leaves.
2. (Soubeiran.) By displacement with tepid water. Diaphoretic and alterative.—Dose, 2 to 4 gr., twice or thrice a day; in scrofula, scirrhus, &c.
3. (Alcoholic; Extractum juglandis foliorum alcoholicum, L.—Ph. Bor.) From walnut leaves (cut), as ALCOHOLIC EXTRACT OF TOBACCO—Ph. Bor. (nearly).
Extract of Wa′ter-dock. Syn. Extractum rumicis aquatici, L. Prep. From the root, as EXTRACT OF HOPS, Ph. L. Astringent and antiscorbutic.—Dose, 15 gr. to 1 dr.; in skin diseases, &c.
Extract of Whor′tleberry. Syn. Extract of bearberry; Extractum uvæ ursi. (Ph. L.), L. Prep. 1. From the dried leaves of the bearberry (Arctostaphylos Uva-Ursi), as EXTRACT OF HOPS—Ph. L.—Dose, 5 to 15 gr., twice or thrice a day; in chronic diseases of the bladder and kidneys, attended with increased secretion of mucus, without inflammation.
2. (Ph. U. S. Extractum uvi-ursi eluidum.) As fluid extract of cotton-root. (Ph. U. S.)
Extract of Willow Bark. Syn. Extractum salicis. (Ph. Par.) From Powdered willow bark, as EXTRACT OF RHATANY.
Extract of Win′ter Cher′ry. Syn. Extractum alkekengi, L. Prep. From the berries of Physalis alkekengi, as EXTRACT OF ELDER. Aperient, detergent, and diuretic. Dose, 2 to 4 dr.
Extract of Win′ter-green. Syn. Extract of pipsissewa; Extractum chimaphilæ, L. Prep. From the herb winter-green or pipsissewa (Chimaphila umbellata), as EXTRACT OF HOPS—Ph. L.—Dose, 10 gr. to 1⁄2 dr.; in dropsy, scrofula, and chronic affections of the urinary organs.
Extract of Wood Sor′rel. Syn. Extractum acetosellæ, L. Prep. (Pideret.) From the expressed juice of the fresh herb (Oxalis acetosella.) Acid, bitter, and antiscorbutic.—Dose, 15 gr. to 1⁄2 dr.