4598. Fluid Extract of Seneka

4598.    Fluid Extract of Seneka. The formula for making this extract will be found in No. 4576, but seneka yields its active principles so easily and entirely, that an extract of it may be obtained of standard strength without evaporation. If a convenient quantity of seneka in No. 50 powder be divided into 3 equal parts, and repercolated with 85 per cent, alcohol, an extract will be obtained, each fluid ounce of which will represent a troy ounce of the root.

4599. Fluid Extract of Ipecacuanha

4599.    Fluid Extract of Ipecacuanha. Moisten 16 troy ounces ipecacuanha in fine powder with 6 fluid ounces alcohol; press it firmly into a conical percolator, and displace 3 pints of tincture, or until the ipecacuanha is exhausted. Distill the tincture over a water-bath until the residue is of a syrupy consistence. Mix with 1 fluid ounce acetic acid and 10 fluid ounces water; boil until reduced to 1/2 pint, and the resinous matter has separated. Filter when cold, and add water through the filter to make the filtrate up to 1/2 pint. Mix with 1/2 pint alcohol. ( U. S. Ph.)

It is affirmed that syrup made from extract prepared according to the above formula is apt to become cloudy. It is proposed to avoid this result by dividing ipecacuanha in No. 50 powder into 3 parts, and obtaining the extract by repercolation in the same manner as the seneka in No. 4598.

4600. Fluid Extract of Sumach

4600. Fluid Extract of Sumach. Take 4 pints 76 per cent, alcohol, and 1 pound of the recently dried bark of Rhus Glabrum (sumach) in coarse powder. Moisten the powdered bark with sufficient alcohol and let it macerate for 24 hours, then percolate with the remainder of the alcohol, returning the first that passes until it runs clear. Reserve the first 4 clear fluid ounces of tincture, evaporate the remainder to 4 fluid ounces, and set aside. Then percolate the residuum nearMEDICINAL ESSENCES.

ly to exhaustion with hot water, evaporate this aqueous solution to 1/2 pint, then add to it 4 ounces white sugar, evaporate to 8 fluid ounces, and, while warm, mix it with the reserved 8 ounces of tincture to make 1 pint of fluid extract. (Am. Dis.)

4601. Fluid Extract of Scullcap

4601.     Fluid Extract of Scullcap. This is prepared from 1 pound of the dried leaves of scullcap (Scutellaria) in precisely the same manner as directed for fluid extract of sumach in preceding receipt. (Am. Dis.)

4602. Fluid Extract of Life-Root

4602.    Fluid Extract of Life-Root is obtained from 1 pound recently dried life-root (senecio aureus) in the same manner as the sumach in No. 4600. (Am. Dis.)

4603. Fluid Extract of Senna and Jalap

4603.    Fluid Extract of Senna and Jalap. Take 6 pints 76 per cent, alcohol. Mix together 1 pound senna and 1/2 pound jalap root, both in coarse powder; moisten them with some of the alcohol, and macerate for 24 hours. Transfer to a percolator and displace with the remainder of the alcohol; reserve the first 6 fluid ounces; evaporate the remainder to 6 fluid ounces and set also aside. Nearly exhaust the residuum with diluted alcohol and evaporate it to 12 fluid ounces; add 8 ounces white sugar; again evaporate to 12 fluid ounces, and, while warm, add 6 drachms carbonate of potassa, 40 minims oil of cloves dissolved in l1/2 fluid drachms Hoffman's anodyne, and the 12 ounces reserved extract, making altogether 11/2 pints fluid extract. (Am. Dis.)