The key technical links of preparing black plaster are as follows

Black plaster is a traditional Chinese medicine preparation, not a standardized drug name. Different preparation methods may have different key technical links. The production methods of common black plaster include processing and soaking. Generally speaking, the key technical links in the preparation of black plaster include:

1. Determine the raw materials used and the treatment methods for preparing raw materials;

2. Choose a suitable preparation method and reasonably control the preparation parameters such as temperature, time and process;

3. Add the prepared medicinal materials and control the proportion of different medicinal materials;

4. Processing and pulverizing preparations.

It should be noted that drug production now strictly follows good manufacturing practice, and domestic black plaster also needs to meet the requirements of GMP (good manufacturing practice) to ensure the quality and safety of the preparation.