Extractum Pini Canadensis Liquidum, B.P.C. Liquid Extract of Hemlock Spruce Bark.
Related entries: Hemlock Spruce Bark
|Pinus Canadensis Bark, in No. 40 powder||100.00|||||20 ounces|
|Alcohol (45 per cent.) ...||to 100.00|||||to 20 fl. ounces|
Moisten the drug with the alcohol, pack in a percolator, and exhaust by percolation with the alcohol. Reserve the first 85 (17 fluid ounces) of percolate, distil off most of the alcohol from the subsequent percolate, evaporate the residue to a soft extract, dissolve this in the reserved portion, and add sufficient of the alcohol to make up to the required volume.
Dose.—1 to 4 mils (15 to 60 minims).