Related entry: Hedeoma (U. S. P.)—Hedeoma
Preparation.—Triturate oil of American pennyroyal, 1/2 fluid drachm, with precipitated calcium phosphate, 1 drachm, then with distilled water, 2 pints, to be gradually added; finally, filter through paper.
King's American Dispensatory, 1898, was written by Harvey Wickes Felter, M.D., and John Uri Lloyd, Phr. M., Ph. D.