Yam bean root poisoning has some damage to the brain. The gastrointestinal tract reaction is the main cause of poisoning, with symptoms such as nausea and vomiting; the neurotoxic reaction is the most serious, with symptoms such as dizziness and slurred speech; in severe cases, there are also symptoms such as chills in the limbs and respiratory arrhythmia. In case of poisoning, the drug should be stopped in time and sent to the hospital for treatment. Yam bean root is a kind of traditional Chinese medicine with bitter taste and cold nature; it is poisonous and belongs to lung and stomach meridians. It has the effect of clearing away heat and detoxification (removing heat and poisonous evil from the body), subduing swelling and relieving pharynx. It is used in the treatment of fire and toxicity, milky moth (related to tonsillitis in western medicine) laryngeal paralysis (redness, swelling and pain in the pharynx, or dryness, foreign body sensation, or itchy discomfort in the pharynx, difficulty in swallowing), sore throat, swollen and painful gums, and sores in the mouth and tongue. Yam bean root is toxic, overdose can easily cause vomiting, diarrhea, chest tightness, palpitation (rapid heartbeat, often accompanied by panic), so the dosage should not be too large; spleen and stomach deficiency and cold (spleen and stomach weakness and cold) should be used with caution. If you need to take this medicine, it is recommended to do so under the guidance of a doctor.