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Extractum Rhei Liquidum, B.P.C. Liquid Extract of Rhubarb.

Format explanation

Related entries: Rheum

Rhubarb, in No. 30 powder 100.00 | 20 ounces
Alcohol, a sufficient quantity. |
Distilled Water, a sufficient quantity. |

Mix 85 (17 fluid ounces) of alcohol with 15 (3 fluid ounces) of water, moisten the powder with 40 (8 fluid ounces) or the mixture, pack in a percolator, cover the powder with the diluted alcohol, allow to macerate for forty-eight hours, exhaust by percolation with the same liquid. Reserve the first 75 (15 fluid ounces) of percolate, evaporate the remainder at a temperature not exceeding 70° to a soft extract, dissolve this in the reserved portion, and add sufficient diluted alcohol to produce 100 (20 fluid ounces).
Dose. —6 to 18 decimils (0.6 to 1.8 milliliters) (10 to 30 minims).


The British Pharmaceutical Codex, 1911, was published by direction of the Council of the Pharmaceutical Society of Great Britain.



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