[Chemical Name] L-Dopa, Levodopa, L-Tyrosine or 3-hydroxy- Levodopa Tablets [Molecular Formula]C9H11NO4 [Molecular Weight]197.19 [Specification]L-Dopa 99, HPLC ,complied with BP2002 standard [Herb Source]Seeds of Vicia faba L and Mucuna cochin-chinensis (Lour)A.Cheval., seeds of M. sempervirens Hemsl (S. capiatumn Kuntze),seeds of M. birdwoodiana Tuteh, and seeds of Stizolobium caprtatum (Sweet)O.Kuntze. [Physical properties] Colorless to white, smell and tasteless crystal or crystalline powder, acicular crystal (water) [Solubility]It dissolves easily in diluted hydrochloric acid and formic acid, soluble in water (65mg/44ml), and almost insoluble in ethanol, benzene, chloroform, and ethyl acetate. [Function]This product is one of the precursors during the In vivo synthesis of noradrenalin, dopamine, and so on. It can increase the level of dopamine in cerebral tissue. Parkinsonism is caused by the lack of dopamine in cerebral tissue, so this product can be used in the clinical treatment of parkinsonism. It can alleviate the symptom (outsourced dopamine cannot pass Blood-Brain Barrier, so it cannot be used directly). It is also effective upon similar symptoms caused by manganese and cobalt toxicosis. It has certain curative effect on liver stupor caused by acute liver failure. [Shelf Life]2 years when properly stored [Storage]Stored in cool & dry place Kept away from strong light and heat [Package]25kg/drum