Tinctura Polygoni.—Tincture of Polygonum.
Related entry: Polygonum.—Water Pepper
SYNONYM: Tincture of water-pepper.
Preparation.—Take of water-pepper, the fresh herb, a sufficient quantity to fill a quart jar; then add Holland gin, or proof-spirit, as much as can be held in the jar. Macerate for 7 days; express and filter. This tincture may likewise be made from the dried herb, in powder, 6 ounces, to 1 ½ pints of proof-spirit, and macerating for 14 days; or by percolation, as explained under Tincturae.
Action, Medical Uses, and Dosage.—This tincture has been used with efficacy in amenorrhoea, dysmenorrhoea, suppressed lochial discharge, and in moderate menorrhagia. The dose is a teaspoonful, 3 or 4 times a day.