Extractum Mangiferae Fluidum.—Fluid Extract of Mangifera.
Related entry: Mangifera.—Mangifera
Preparation.—Take of the bark of Mangifera indica, in moderately fine powder, 20 troy ounces; of a menstruum of glycerin, 6 fluid ounces; water, 10 fluid ounces (by measure), a sufficient quantity. Add the powder to 64 fluid ounces of the menstruum, in a suitable vessel, and let it macerate for 24 hours, with occasional stirring. Then place it in a muslin strainer, and express; filter the expressed liquid through paper. Return the material within the muslin strainer to the vessel, add 32 fluid ounces of water, and allow this to macerate for 24 hours, when it must be expressed and filtered, as at first. Mix the two filtrates, and, by means of a water-bath, evaporate until the fluid is reduced to 13 fluid ounces, when 3 fluid ounces of alcohol is to be added. Mangifera indica is one of the most difficult substances we have ever attempted to extract by percolation, providing the menstruum is adapted to take up the tannates, with which the bark abounds. In such a case, the menstruum will seldom penetrate beyond an inch or so into the powder, even if it is very coarse; therefore, we prefer and employ maceration.
Description, Medical Uses, and Dosage.—Fluid extract of mangifera is of a dark, ruby-red color when in thin layer, of a peculiar odor, and a sweetish (glycerin), and very astringent taste. This preparation was introduced to the medical profession by Dr. M. F. Linquist, of New Haven, Conn. (For uses, see Mangifera.) Dose, 15 to 60 minims.