申请人:Yamaguchi Isamu
公开号:US20090075974A1
公开(公告)日:2009-03-19
Disclosed is a pharmaceutical composition for prophylaxis and treatment of pancreatitis comprising a 5-HT2A receptor antagonist as an effective component, wherein the binding activity (pKi) of the 5-HT2A receptor antagonist to a 5-HT2A receptor is higher at least by 1.0 than the binding activities to a 5-HT2B receptor and a 5-HT2C receptor. Preferably the binding activity (pKi) of the 5-HT2A receptor antagonist to the 5-HT2A receptor is at least 7.0, and more preferably at least 8.0. The present invention also provides a method of identifying a candidate substance for prophylactic and therapeutic agent for pancreatitis, comprising determining whether a test substance has a 5-HT2A receptor antagonistic activity.