2132
A total of 69 mice , approximately 7 weeks of age , and weighing 21 . 0 to 29 . 1 g were randomly assigned to bupropion HCl 120 mg / kg treatment by intraperitoneal ( IP ) administration in 7 groups ( 9 to 10 animals per group ) .
 Chemical: bupropion HCl
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 HCl