4532
Forty - eight hours after the final exercise period , S - I and E - I animals received a single subcutaneous injection of isoproterenol ( 250 mg / kg body weight ) .
 Chemical: isoproterenol
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: isoproterenol