3837
We conclude that PPA increases blood pressure by increasing systemic vascular resistance and cardiac output , and that propranolol antagonizes this increase by reversing the effect of PPA on cardiac output .
 Chemical: PPA; Chemical: propranolol; Chemical: PPA
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: PPA; Chemical: propranolol; Chemical: PPA