Emulsum Asafoetidae (U. S. P.)—Emulsion of Asafetida.
SYNONYMS: Mistura asafoetidae (Pharm., 1880), Milk of asafoetida, Asafoetida mixture, Lac asafoetidae.
Preparation.—"Asafetida, in selected tears, forty grammes (40 Gm.) [1. oz. av., 180 grs.]; water, a sufficient quantity to make one thousand cubic centimeters (1000 Cc.) [33 fl℥, 391♏]. Rub the asafetida, in a warmed mortar, with nine hundred cubic centimeters (900 Cc.) (30 fl℥, 208♏] of water, at first very gradually added, until a uniform emulsion results. Then strain the mixture into a graduated vessel, and wash the mortar and strainer with enough water to make the product measure one thousand cubic centimeters (1000 Cc.) .) [33 fl℥, 391♏]. Mix the whole thoroughly"—(U. S. P.). About 18 ¼ grains of asafetida to the ounce of water are contained in this emulsion.
Action, Medical Uses, and Dosage.—This is the best preparation of asafetida. It is also used as an enema. Dose, ½ to 1 fluid ounce.