| Origin |
It is the entire gut of Agkistrodon halys (Pallas), a pit viper of the family Viperidae.
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| Function and treatment |
Dispelling wind and attacking poison. Treating leprosy, mange, skin paralysis, scrofula, and hemorrhoid disease. |
| Origin and best harvesting period |
It lives in plains, hills and mountains, and is active in rice fields, cultivated areas, grasslands and near dwellings. Widely distributed throughout China. It is caught in spring and summer. After being caught, the internal organs are removed from the abdomen, dished into a disc shape and dried. Can also be used fresh. |
