Formulation containing peanut leaf extract and its preparation

A process for preparing the preparation containing leaf extract of Arachis hypogaea, comprising:

• drying and pulverizing the stem and leaves of A. hypogaea, passing through sieve of 10-40 meshes;
• charging into a multifunctional reaction vessel equipped with heating jacket and reflux decice, in which
• 144 parts leaves are heated under reflux with 200-1000 parts non-polar solvent for 1˜3 times, 2˜4 hours for each time;
• or steam distillated to extract the liposoluble component A,
• the residual leaves are extracted again with 200-1200 parts polar solvent for 1˜3 times, 1˜4 hours for each time, after removing the solvents,
• combine the two kinds of extracted solutions, thus obtain the leaf extract, and
• formulating the preparation by mixing 1˜85% said leaf extract with 99˜15% pharmaceutical carrier or excipient based on 100% preparation.