»Prepare Cascara Sagrada Fluidextract as follows.To 1000g of coarsely ground Cascara Sagrada add 3000mLof boiling water,mix,and allow to macerate in a suitable percolator for 2hours.Allow the percolation to proceed at a moderate rate,gradually adding boiling water until the drug is practically exhausted of its active principles.Evaporate the percolate on a water bath or in a vacuum still to not more than 800mL,cool,add 200mLof alcohol and,if necessary,add sufficient water to make the product measure 1000mL.Mix.