method for preparation of AGENT with anti-inflammatory, analgesic and diuretic activity

摘要

The invention relates to a method for preparation of an agent with anti-inflammatory, analgesic and diuretic activity, which comprises repeated extraction with ethyl alcohol of plant material with total ratio of raw material and extractant 1:9 - 1:11, combination of preparaed extracts and evaporation, and China poplar leaves are subjected to extraction with 49-51% ethyl alcohol at temperature of 60-80 ° C successively three times for 2 hours, and the combined extract is further settled, filtered and concentrated to dry residue.