Extractum Arnicae Liquidum, B.P.C. Liquid Extract of Arnica.
|Arnica Rhizome, in No. 60 powder||100.00|||||20 ounces|
|Alcohol, a sufficient quantity.|
|Distilled Water, a sufficient quantity.|
Exhaust the drug by percolation with a mixture of alcohol, 3 and distilled water, 1. Reserve the first 80 (16 fluid ounces) of percolate, evaporate the remainder to a soft extract, dissolve in the reserved portion, and add sufficient menstruum to produce 100 (20 fluid ounces).