chemical composition
The root of erect Betula contains volatile oil, cardiac glycosides, etc. Among them, the cardiac glycosides are mainly steroidal polyglycosides, and the main component of volatile oil is Cynancholine.
Pharmacological effects: Baiweisu has the effect of strengthening myocardial contraction, which can slow down the heart rate. Pneumonia balls have inhibitory effects, and antipyretic, diuretic effects. Adverse reactions: Baiweisu has a strong cardiac effect, internal overdose, has caused cardiac glycoside-like poisoning reaction, poisoning amount is 30 ~ 45g, there may be palpitations, nausea, vomiting, dizziness, headache, diarrhea, runny nose and other poisoning Symptoms, clinical medication should be noted.
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