Preparation.—“White pine bark (Pinus Strobus), seventy-five grammes (75 Gm.) [2 ozs. av., 282 grs.]; wild cherry bark, seventy-five grammes (75 Gm.) [2 ozs. av., 282 grs.]; spikenard root, ten grammes (10 Gm.) [154 grs.]; balm of Gilead buds, ten grammes (10 Gm.) [154 grs.]; sanguinaria root, eight grammes (8 Gm.) [123 grs.]; sassafras bark, seven grammes (7 Gm.) [108 grs.]; morphine sulphate, one-half gramme (0.5 Gm.) [8 grs.]; chloroform, six cubic centimeters (6 Cc.) [97 ♏]; sugar, seven hundred and fifty grammes (750 Gm.) [1 lb. av., 10 ozs., 199 grs.]; alcohol, water, syrup (U. S. P.), of each, a sufficient quantity to make one thousand cubic centimeters (1000 Cc.) [33 fl℥, 391 ♏]. Reduce the vegetable drugs to a moderately coarse (No. 40) powder, moisten the powder with a menstruum composed of 1 volume of alcohol and 3 volumes of water, and macerate for 12 hours. Then percolate with the same menstruum until five hundred cubic centimeters (500 Cc.) [16 fl℥, 435 ♏] of tincture have been obtained, in which dissolve the sugar and the morphine sulphate; lastly, add the chloroform, and sufficient syrup to make one thousand cubic centimeters (1000 Cc.) [33 fl℥, 391 ♏], and strain”—(Nat. Form.).
Action, Medical Uses, and Dosage.—This agent is considerably employed for the general purposes of a “cough syrup.” Dose, 1 fluid drachm.