Extractum Cerei Liquidum, B.P.C. Liquid Extract of Cereus.
Related entry: Cereus
Synonym.—Extractum Cacti Grandiflori Liquidum.
|Cereus, in No. 40 powder||100.00|||||20 ounces|
|Alcohol ...||to 100.00|||||to 20 fl. ounces|
Exhaust the drug by percolation, reserving the first 85 (17 fluid ounces) of percolate, recover most of the alcohol from the subsequent percolate by distillation, evaporate the residue to a soft extract, dissolve this in the reserved percolate, and add sufficient of the alcohol to make up to the required volume.
Dose.—½ to 6 decimils (0.05 to 0.6 milliliters) (1 to 10 minims).