Efficacy and effects of Gastrodia elata:
1. Effect on the central nervous system: Gastrodia elata extract has obvious anti-pentylenetetrazole clonic convulsions; Degree of ester-induced epileptic seizures in rabbits. Gastrodia injection has sedative and hypnotic effects.
2. Cardiovascular effects: Gastrodia elata has a certain degree of dilation effect on coronary arteries and peripheral blood vessels. Gastrodia elata injection can reduce blood pressure, slow down heart rate, increase cardiac output, and myocardial consumption in rabbits. Oxygen drops. Gastrodin can promote the energy metabolism of myocardial cells, especially the ability to obtain energy under hypoxic conditions. In addition, it also has anti-inflammatory and immune effects.
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Gastrodia elata is a perennial herb distributed in most parts of the country. Its dried tuber, also known as Gastrodia elata, is a commonly used and valuable traditional Chinese medicine. It is clinically used for headaches, dizziness, numbness of limbs, infantile convulsions, epilepsy, convulsions, tetanus and other diseases. Gastrodia elata has always relied on wild resources in the past. After the success of converting wild species into domestic species in the 1970s, domestically grown Gastrodia elata became the main source of commodities.
Gastrodia elata - the Chinese medicinal material Gastrodia elata tubers are oval or elongated, slightly flat, shriveled and slightly curved. 3~15cm long, 1.5~6cm wide, 0.5~2cm thick. The surface is yellow-white to light yellow-brown, slightly transparent, with many irregular longitudinal wrinkles, longitudinal wrinkles and multiple horizontal rings arranged by latent buds. Sometimes brown fungi can be seen, with punctate marks or membranous scales. Brown and black mycotins are sometimes seen. There is a residual stem base (spring hemp) at the top, or a reddish-brown to dark brown parrot's beak-shaped terminal bud (winter hemp), and at the end there is a round umbilical scar after the mother hemp fell off. The texture is solid, not easy to break, the cross section is flat, horny, yellowish white or light brown. Qi is slight, nature is flat, taste is sweet, slightly pungent. It is better if it has a solid texture, is heavy, has a parrot's mouth, and has no hollows.
Functions and Indications:
1. Calm the liver and calm wind. Gastrodia elata is moist and liquid, nourishes blood and calms wind. It can treat headaches and dizziness caused by blood deficiency and liver wind. It can also be used for convulsions, epilepsy and tetanus in children.
2. Expel wind and relieve pain. It is used for dizziness, migraine headache, numbness of limbs and hemiplegia caused by wind and phlegm.
Gastrodia elata is suitable for dizziness caused by internal wind. There are three types of headaches caused by internal wind: 1. Hyperactivity of liver yang, symptoms: headache and dizziness at the same time; 2. Blockage of phlegm, symptoms: often feeling like the head is heavy; 3. Patients with kidney deficiency, symptoms: headache Dizziness is accompanied by symptoms of memory loss. Gastrodia elata is not suitable for headaches and dizziness caused by colds.
Gastrodia elata has sedative, analgesic, and anticonvulsant effects; it can increase cerebral blood flow, reduce cerebral vascular resistance, slightly shrink cerebral blood vessels, and increase coronary blood flow; it can lower blood pressure, slow down the heart rate, and have a negative impact on myocardium. Ischemia has a protective effect; Gastrodia polysaccharide has immune activity.