24922
Blood pressure , pulse , and behavioral measures were obtained before and periodically after 0 . 4 mg / kg oral yohimbine or placebo in a randomized , counterbalanced design .
 Chemical: yohimbine
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: yohimbine