846
The subject , a 31 - year - old female smoker , was participating in a clinical trial evaluating an investigational medication for smoking cessation that used sustained - release bupropion as an active control .
 Chemical: bupropion
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: bupropion