4582. Oleoresin of Lupulin

4582.    Oleoresin of Lupulin. Press 12 troy ounces lupulin into a narrow cylindrical percolator, and displace with ether 30 fluid ounces; complete the process by distillation and subsequent evaporation in the same way as for capsicum. (See No. 4580 (Oleoresin of Capsicum).) (U. S. Ph).

4583. Oleoresin of Black Pepper

4583.      Oleoresin of Black Pepper. Treat 12 troy ounces black pepper in fine powder, by ethereal percolation and distillation, in the same manner as laid down in No. 4580; expose the residue after distillation in a capsule, until the remaining ether has evaporated and the deposition of piperin in crystals has ceased. Lastly, separate the oleoi es-in from the piperin by expression through a muslin strainer, and keep in a well-stopped bottle. ( U. S. Ph).

FLUID EXTRACTS.                                      42l

4584. Oleoresin of Ginger

4584.     Oleoresin of Ginger. Take 12 troy ounces ginger in line powder, press it firmly into a cylindrical percolator, and pour upon it 12 fluid ounces stronger ether; continue the percolation with alcohol sufficient to displace 12 fluid ounces in all. Recover from this, by distillation on a water-bath, 9 fluid ounces ether, and expose the residue in a capsule until the volatile part has evaporated. Lastly, keep the oleoresin in a well-stoppered battle. (17. S. Ph.)

4585. Oleoresin of Male Fern

4585.    Oleoresin of Male Fern. Pack closely 2 pounds avoirdupois, male fern, in coarse powder in a percolator; displace with 4 imperial pints ether, or until it passes colorless. Let the ether evaporate on a water-bath, or recover it by distillation, and preserve the oily extract. (Br. Ph.) This preparation by its character decidedly belongs to the oleoresins; it has long been known and much used in Europe, under the name of oil of fern, in the treatment of the tapeworm. It is believed to have all the vermifugal powers of the male fern, and may be given in 1/2 fluid drachm doses. (U. S. Dis.)

4586. Fluid Extract of Rhubarb and Potassa

4586.    Fluid Extract of Rhubarb and Potassa. Grind or coarsely bruise 2 pounds avoirdupois best India rhubarb, 1 pound cassia or cinnamon, and 1 pound golden seal; macerate for 24 hours or more in 1 gallon good French brandy; express strongly, and add 1 fluid drachm oil of peppermint previously dissolved in a little 90 per cent, alcohol. Break up the compressed residue, and percolate with warm water until exhausted. Evaporate this solution to 4 pints, and, while warm (not too hot), dissolve in it 2 pounds bicarbonate of potassa, and 3 pounds refined sugar; evaporate, if necessary, to the quantity that the first macerated tincture lacks of 11/2 gallons. Lastly mix the two together. It is used for the same purposes as the compound powder of rhubarb, 2 fluid drachms of the extract being equivalent to 1 drachm of the powder. (Am. Dis.) A simple alkaline ex tract of rhubarb is given in No. 4591.