4721
OBJECTIVE : To determine the maximum tolerated dose ( MTD ) of carbetocin ( a long - acting synthetic analogue of oxytocin ) , when administered immediately after vaginal delivery at term .
 Chemical: carbetocin; Chemical: oxytocin
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: carbetocin; Chemical: oxytocin