Further discussion on'Asarum's dosage can not exceed one Qian'
The saying that'Asarum's dosage can not exceed one Qian'has a long history,but there is still controversy,resulting in certain restrictions on the dosage of Asarum in clinical practice.From four aspects:the literature source,Asarum dosage,dosage form and the mode of administration,the article deeply discusses'Asarum's dosage can not exceed one Qian',and the conclusions are as follows:The exact saying of'Asarum's dosage can not exceed one Qian'is in Bencao Bieshuo,'if Asarum is used alone as a powder,it should not exceed half of a coin-spoon'.'Coin-spoon'is a medicine measuring device,'Qian'is a unit of mass.'Half of a coin-spoon'is about 0.3 g,and'one Qian'is about 3 g.Asarum powder in Bencao Bieshuo may be a powder with relatively small particle size,rather than'coarse powder'.The mode of administration is likely to be topical nasal insufflation rather than oral administration.Comprehensive analysis shows that the single use of Asarum powder can lead to the symptoms of'stuffiness,died from suffocation'due to multiple factors such as large doses,powder dosage form and external nasal blowing,which is not the one-sided understanding of'Asarum's dosage can not exceed one Qian'in later generations.
Literature sourceAsarum dosagePowder dosage formExternal nasal blowing
NETL
NSTL
万方数据
