20029
CONCLUSIONS : Low - dose co - treatment with naltrexone and bupropion produces a stronger suppression of appetite than that seen with either agent alone and has the additional advantage of reducing some of the unwanted effects of bupropion .
 Chemical: naltrexone; Chemical: bupropion; Chemical: bupropion
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: naltrexone; Chemical: bupropion; Chemical: bupropion