Products Name : Hawthorn Extract Powder    [Product Name] Hawthorn Extract Powder , Hawthorn P.E. [The source of the plant] Crataegus oxyacantha [Active ingredient] Flavones, Vitex-2"-rhamnoside [Main specifications] Flavones 5%,10%,20%,30%,40%,50%,60%,70%,80%,90% Test By UV, Vitex-2"-rhamnoside 2% Test By HPLC [Molecular formula and molecular weight] [Pharmacology function]It is taken orally to relieve chronic heart conditions????primarily congestive heart failure, but also angina and arrhythmias. Chemicals in it may act directly on the heart muscle to increase the force of heartbeats and on the blood vessels to relax the arteries around the heart. It may also lengthen the time that the heart rests between beats. It may also work indirectly by widening blood vessels close to the surface of the skin. As a result, it may also help to lower blood pressure. Due to its multiple effects on the heart, it should not be taken before its use has been discussed with a doctor.