Description_x000D_ General description_x000D_ Gastrodin, a phenolic glucoside, is the main active ingredient of the traditional Chinese medicinal compound Tianma. Gastrodin is an active component of Gastrodia elata Blume, a herb belonging to the Orchidaceae family._x000D_ Application_x000D_ Gastrodin has been used as a control to estimate the gastrodin content in the leaves, roots and stems of Anoectochilus formosanus Hayata._x000D_ Packaging_x000D_ 25, 100, 500 mg in poly bottle_x000D_ Biochem/physiol Actions_x000D_ Gastrodin can penetrate through the blood-brain barrier and has been suggested to have neuroprotective effects against hypoxia. It is also known to reduce the immunoreactivity of gamma-aminobutyric acid shunt enzymes in hippocampal tissues. Traditionally, gastrodin is also known to be effective in the treatment of headache, vertigo, dizziness and convulsive disorders. Along with anticonvulsant property, it also possesses antiepileptic, anxiolytic, anti-inflammatory and antiobesity action. Gastrodin is also helps in learning and memory stimulation.