Source: Tian Ma – the tuber of Gastrodia elata BI., family Orchidaceae.
Function: Tian Ma stops internal wind to arrest convulsion, calms the liver and suppresses yang.
Application: Tian Ma is used for dizziness and headache due to hyperactivity of liver-yang and is an essential herb for treating dizziness. For acute infantile convulsion and pain and numbness of the extremities.