Major Components： Salicin Specifications：15%，25% Assay Method：15%，25% Herb Source：Extracted from the bark of White willow（Salix alba L）. White willow belongs to Salicaceae ,Salix . Brief：white powder Pharmacology：Salicin is the active ingredient of White Willow Bark P.E. It will be hydrolyzed in our bodies and oxidized to saligenin, salicylic acid and so on, so it have functions of antipyretic, analgesic and antirheumatic. It can be used to cure fever, influenza, rheumatosis , epidemic hepatitis, reduce swelling and relieve various pain,such as headache, arthralgia, lumbago and back pain. White Willow Bark P.E can strengthen the stomach with bitterness and promote digestion. It injected into the mouth of sheep, it will increase salivation and mastication to help digesting. Valid period： 24 months with original packing under 18℃