How long is the validity period of the captured Chinese medicine?

To specific analysis of specific drugs Professor Zhou Chaofan, a member of the executive committee of the State Pharmacopoeia Commission and a well-known Chinese medicine practitioner, believes that specific drugs should be analyzed for the expiration date of traditional Chinese medicine. "Like Huoxiang, peppermint, and nepeta, after a long period of storage, the volatile oil contained in them will volatilize, and the active ingredients will be reduced. And like Coptis chinensis, which can be stored for 10 years, isn't the older the tangerine peel, the better?

Because their composition is relatively stable. Professor Zhou took out a packet of medicine and said to reporters: "You see, this medicine is called 'Dragon Blood Tribulation', which is very precious, a rare medicinal material, and a non-renewable resource.

It is made from the sap of a species called 'dragon's blood tree' that grows in Cambodia and Indonesia. If you look at the pill box, the expiration date for it is 'January 2002 and December 2004', which is only 3 years?! It can be kept for 10 years without any problems!

However, we have ruled it invalid in 3 years, which is a waste of non-renewable resources! Last year, I met a patient who kept three Angong Niuhuang Pills from Tong Ren Tang before the liberation of Tongrentang in his home, wrapped in gold foil and sealed with wax on the outside. He had a stroke, and the effect was good after eating it, so could it be said that these three Angong Niuhuang Pills were useless because they were too long?

We have to judge the expiration date of each traditional Chinese medicine according to the specific situation, such as the mineral medicine 'dragon bone', which is a fossil of a dinosaur, about hundreds of millions of years, who can say how many years its expiration date will be? Amber is solidified by the sap of the pine tree, and after hundreds of millions of years, who can say how many years it will be alive? Some herbs are non-renewable resources, and they should not be given a two-year or three-year expiration date and then discarded.

Even if the expiration date of some traditional Chinese medicines has expired, its active ingredients can be re-identified, and if the active ingredients are still there, they can continue to be used to extend their expiration date. For those drugs with stable Chinese medicine ingredients, the expiration date can be set for a longer time, and for those with unstable ingredients, the time can be set for a shorter time. I'm still saying that:

For the expiration date of traditional Chinese medicine, specific drugs should be specifically analyzed! At present, China has not formulated evaluation standards and methods that are in line with the characteristics and traditions of traditional Chinese medicine, and can only apply the rules of Western medicine, which is inevitably somewhat inappropriate. ”

The reason why the validity period of Chinese medicine decoction pieces should also be specified, and the relevant knowledge of the expiration date of Chinese medicine decoction pieces should also be specified. In the daily supervision and inspection, the author found that since there are no mandatory regulations on the expiration date of the label of traditional Chinese medicine decoction pieces in China, almost all of the labels of traditional Chinese medicine decoction pieces do not indicate the expiration date, so it is difficult for law enforcement officials to judge whether they have expired. Many medical units and pharmacies stop using traditional Chinese medicine decoction pieces until obvious moth-eaten and mildew can be seen with the naked eye, which brings hidden dangers to the safe use of medicine.

The use and storage period must be strictly stipulated, and those that exceed the time limit must be inspected, and those who are qualified can be used. How to determine the expiration date of Chinese herbal decoction pieces? The author suggests that the classification of traditional Chinese medicine drinks with different properties should be determined.

For example, for some decoction pieces that are chemically stable and easy to keep, the validity period can be longer; For some traditional Chinese medicines that are not very stable, volatile and easy to change color when exposed to light, the specified validity period is slightly shorter; For traditional Chinese medicine decoction pieces that are easy to absorb moisture, insects, and mildew, the prescribed validity period is shorter. In short, the decoction pieces of traditional Chinese medicine with different properties should be scientifically demonstrated, classified and archived, and different storage and use periods should be stipulated to ensure the safety and effectiveness of the decoction pieces.

Generally, it needs to be boiled for two hours, if it is boiled for too long, it will emit medicinal effects, which will not play a good role, and generally there are time regulations when boiling medicine.

Generally, it takes half an hour or 40 minutes is the best, and the time should not be cooked for too long, otherwise the nutrients will be lost. It doesn't work accordingly.

At least boil for half an hour, in order to have a good effect, it is best to cook for an hour, if you cook it for too long, it will lose its medicinal properties, and it will have no effect after drinking.