Externally applied plaster for treating arthralgia and arthritis, and preparation method of externally applied plaster
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 杭州仁德药业股份有限公司
- Publication Date
- 2017-12-01
Abstract
Description
technical field
[0001] The invention relates to the technical field of plaster and its preparation, in particular to an external plaster for treating joint pain and arthritis and a preparation method thereof. Background technique
[0002] Existing plasters usually use natural rubber matrix. A serious disadvantage of natural rubber-based plasters is their extremely poor air permeability. , but due to improving the air permeability of plaster paste, such improvement has extremely limited effect, and it is difficult to realize the requirement of good air permeability. In addition, there is another shortcoming, which is also the problem of the existing natural rubber matrix plaster, that is, its drug effect time is short, and it does not have the characteristics of long-acting onset, which also causes patients to frequently replace the plaster when using it. , which brings great inconvenience to patients, especially for plasters that need to be applied on special parts, and the...