\"levodopa\noriginal plant:bean seed.\norigin southern and eastern asia, mainly in south china, southwest and guangxi, hunan and other provinces\nproduct characteristics:brown to white fine powder\nproduct specifications:10%-99%\ntest method:hplc\nits main effective ingredient is levodopa.levodopa is mainly use in treatment of parkinsonism,liver stupor,fracture, neuralgia etc.\"