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Pre - treatment with a dose of 30 mg / kg 2h before picrotoxin microperfusion prevented seizures in the 75 % of the rats .
 Chemical: picrotoxin; Disease: seizures
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