[effect of Gastrodia elata] what is the effect of Gastrodia elata

Gastrodia elata is a commonly used and valuable traditional Chinese medicine, which is mainly used for headache, dizziness, limb numbness, infantile convulsion, tetanus and so on. Because Gastrodia elata has a significant effect on headache and vertigo caused by hyperactivity of liver-yang, it is often taken as a "tonic". As soon as you see vertigo, regardless of physical deficiency and excess, qi and blood ups and downs, the misuse of Gastrodia elata, the result may be the same adverse reactions as the above patients.

The common adverse reactions of taking Gastrodia elata are: dizziness, nausea, chest tightness, skin papules with itching, etc., individual will appear facial or whole body edema, or even hair loss. This kind of reaction will occur not only with Gastrodia elata, but also after taking decoction containing Gastrodia elata, such as Pinellia Atractylodes decoction, proprietary Chinese medicine such as Tianma pills and Gastrodia mellea sugar-coated tablets, there will also be symptoms of allergy to Gastrodia elata.

The ancients have long known about the side effects or taboos of Gastrodia elata. For example, the Compendium of Materia Medica says, "if you take Gastrodia elata for a long time, you will send red dyes all over the body." "Benjing Fengyuan" also said: "although the nature of Tianma is not dry, after all, if there is no wind due to blood deficiency, people with fire headache and dry mouth should not be misused."

Wu Yiluo, a famous doctor in the Qing Dynasty, said bluntly: "Blood decline and those who are not really moderate wind should not be used." Modern pharmacological experiments show that Gastrodia elata has certain toxic and side effects, the dose of Gastrodia elata poisoning is more than 40g, and the poisoning incubation period is 1-6 hours.

Functional indications

Gastrodia elata run but not dry, the main into the liver meridian, longer than calm the liver wind, where the liver wind moving, head vertigo, regardless of deficiency and reality, are essential medicine.

1. Calming the liver and relieving wind: Gastrodia elata is moisturized and liquid, which can nourish the blood and rest the wind, treat headache and vertigo caused by blood deficiency and liver wind, and can also be used for infantile convulsion, epilepsy and tetanus.

2. Dispelling wind and relieving pain: used for vertigo, migraine, limb numbness and hemiplegia caused by wind and phlegm.

Gastrodia elata is suitable for dizziness caused by internal wind. There are three types of headache caused by internal wind: first, hyperactivity of liver-yang, symptoms: headache and dizziness appear at the same time; second, turbid phlegm, symptoms: often feel heavy; third, patients with kidney deficiency, symptoms: headache, dizziness accompanied by memory loss. Gastrodia elata is not suitable for headache caused by cold and dizziness.

Gastrodia elata has sedative, analgesic and anticonvulsant effects; it can increase cerebral blood flow, reduce cerebrovascular resistance, contract cerebral vessels slightly, increase coronary vascular flow, reduce blood pressure, slow down heart rate, and protect myocardial ischemia; Gastrodia elata polysaccharides have immune activity.

Pharmacological effects of Gastrodia elata

1. Analgesic effect: Tianma injection made from Gastrodia elata has obvious analgesic effect on trigeminal neuralgia, vascular nerve headache, cerebrovascular headache and toxic polyneuritis. In recent years, through the clinical trial of more than 1000 patients in some medical units, the effective rate is up to 90%.

two。 Sedative effect: some medical units use synthetic gastrodin (gastrodin) to treat patients with neurasthenia and neurasthenia syndrome, with an effective rate of 89.44% and 86.87%, respectively. It can also inhibit the central excitatory effect caused by caffeine and enhance the sleep time effect of pentobarbital.

3. Anticonvulsant effect: Gastrodia elata facial nerve convulsion, limb numbness, hemiplegia, epilepsy and so on. It also has the effect of relieving smooth muscle spasm, relieving angina pectoris and biliary angina.

4. Effect of lowering blood pressure: Gastrodia elata can treat hypertension. Long-term service can calm the liver and replenish qi, benefit waist and knees, strengthen muscles and bones, increase peripheral and coronary blood flow, and protect the heart.

5. The effect of enlightening eyesight and increasing intelligence: Gastrodia elata still has the function of enlightening eyesight and significantly enhancing memory. Gastrodia elata has obvious protective and regulatory effect on human brain nervous system, and can enhance the distinguishing ability of optic nerve. Gastrodia elata has been used as brain health food or brain health drug for high-altitude pilots. In Japan, Gastrodia elata injection is used to treat Alzheimer's disease, with an effective rate of 81%.