What is the purpose of decocting drugs with auxiliary materials, and how to control the quality standard of decocting?

Objective: Accessories can cooperate with the main drug, or enhance the curative effect, or reduce the toxicity, or reduce the side effects, or affect the main physical and chemical properties.

The quality standard controls the decocting method: the decocting time should be determined according to the performance of the prescription. Drugs for relieving exterior syndrome, clearing heat and aromatic drugs should not be decocted for a long time, and then decocted after boiling for 15-20 minutes; Generally, the medicine is boiled and decocted for 20-30 minutes. After the tonic is boiled with strong fire, it is slowly decocted with slow fire for about 40 minutes to an hour.

Stir the ingredients 2-3 times during the boiling process. The second decocting time of the drug was slightly shortened. Each dose of medicine is generally decocted twice, and the decoctions are mixed and packaged.

Common methods of processing traditional Chinese medicine;

1, pruning: including purification, crushing and cutting.

2. Water preparation: a method of treating medicinal materials with water or other auxiliary materials. The main purpose is to clean drugs, remove impurities, soften drugs, facilitate cutting, reduce toxicity and adjust drug properties. Common methods are: rinsing, boring, moistening, soaking, spraying, flying water and so on.

3. making a fire: it is a method of heating drugs with fire. It can be divided into eight types: frying, roasting, scalding, calcining, simmering, roasting, stirring and baking.

4, fire and water system: both fire and water should be used, and some accessories should be added. Include boiling, steaming, stewing and quenching.

5. Other methods: icing, fermentation, refining and drug mixing.

The above content comes from the processing technology of traditional Chinese medicine (national intangible cultural heritage)-Baidu Encyclopedia.