Gastrodia is a preparation made from the rhizome or tuber of an orchid, Gastrodia elata.

Gastrodia sesamoides was created in 1810.

research suggests that the gastrodia tuber has analgesic and sedative effects because the compounds in it decrease the level of dopamine in the brain.

One source reports that the side effects of gastrodia include skin allergies, hair loss, and other allergic reactions.

gastrodia has been used to relieve nervous headaches, pain in the trigeminal nerve, nocturnal emissions, difficult breathing, insomnia due to stress, and hypertension.