3979
Following the appearance of tumours , animals were either treated with one injection of rapamycin ( 4 mg / kg ) followed by two injections of DXR ( 10 mg / kg ) .
 Chemical: rapamycin; Chemical: DXR
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: rapamycin; Chemical: DXR