553
METHODS : Three groups were established : a control group ( n = 10 ) , a high - dose group ( n = 10 ) , treated with one intraperitoneal injection of indomethacin 20 mg / kg , and a therapeutic dose group ( n = 10 ) in which oral indomethacin was administered 3 . 25 mg / kg body weight daily for 3 weeks .
 Chemical: indomethacin; Chemical: indomethacin
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: indomethacin; Chemical: indomethacin