Agkistrodon agkistrodon secretes a large amount of poison, and active enzymes rich, is a kind of The current research is only limited to thrombin - like research In addition, antitumor effects have also been reported, while other physiological or pharmacological studies have been compared Less; First of all, a. agkistrodon has been used for wind and dehumidification for a long time The pharmacological effect of this drug remains to be studied. Secondly, snake venom used in the current market.