1970
Treatment options for DUB are : combined oral contraceptives ( COCs ) , progestogens , non steroidal anti inflammatory drugs ( NSAIDs ) , tranexamic acid ( anti - fibrinolytic ) , GnRH analogues , Danazol and Levonorgestrel releasing intra uterine system ( LNG IUS ) .
 Chemical: progestogens; Chemical: tranexamic acid; Chemical: GnRH; Chemical: Danazol; Chemical: Levonorgestrel
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: progestogens; Chemical: tranexamic acid; Chemical: GnRH; Chemical: Danazol; Chemical: Levonorgestrel