20024
METHODS : Video analysis was employed to characterise the behavioural effects of acute systemic treatment with bupropion ( 10 . 0 - 40 . 0 mg / kg ) , naltrexone ( 0 . 1 - 3 . 0 mg / kg ) and combined bupropion ( 20 mg / kg ) plus naltrexone ( 0 . 1 - 1 . 0 mg / kg ) in non - deprived male rats exposed for 1 h to palatable mash .
 Chemical: bupropion; Chemical: naltrexone; Chemical: bupropion; Chemical: naltrexone
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: bupropion; Chemical: naltrexone; Chemical: bupropion; Chemical: naltrexone