18405
Cobicistat is a new pharmacokinetic booster that is a selective inhibitor of cytochrome P450 3A , the main metabolizing pathway of several antiretrovirals .
 Chemical: Cobicistat
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: Cobicistat