9591
After the pretreatment period , isoproterenol ( 100 mg / kg body weight ) was injected subcutaneously into rats twice at an interval of 24 h to induce myocardial infarction .
 Chemical: isoproterenol
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: isoproterenol 
Answer:
 Chemical: isoproterenol