3279
In doses of 3 - 10 mg / kg , the serotonin receptor agonist MK - 212 caused a dose - dependent blockade of the response of muscimol .
 Chemical: serotonin; Chemical: MK - 212; Chemical: muscimol
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: serotonin; Chemical: MK - 212; Chemical: muscimol