3258
The compound GYKI - 41 099 , as a beta - adrenergic antagonist , is 3 - 8 times more potent than propranolol in vitro and in vivo .
 Chemical: GYKI - 41 099; Chemical: propranolol
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: GYKI - 41 099; Chemical: propranolol