14644
Furthermore , both the I ( 1 ) receptor antagonist , efaroxan ( 9 mg / kg ) and the I ( 2 ) receptor antagonist , BU224 ( 5 mg / kg ) attenuated the agmatine - induced inhibition of the ethanol CPP acquisition .
 Chemical: efaroxan; Chemical: BU224; Chemical: agmatine; Chemical: ethanol
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: efaroxan; Chemical: BU224; Chemical: agmatine; Chemical: ethanol