3981
Structure - activity and dose - effect relationships of the antagonism of picrotoxin - induced seizures by cholecystokinin , fragments and analogues of cholecystokinin in mice .
 Chemical: picrotoxin; Disease: seizures; Chemical: cholecystokinin; Chemical: cholecystokinin
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: picrotoxin; Disease: seizures; Chemical: cholecystokinin; Chemical: cholecystokinin