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This article summarizes the milestones in the development of ospemifene leading to this first approval for moderate to severe dyspareunia , a symptom of postmenopausal vulvar and vaginal atrophy .
 Chemical: ospemifene
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: ospemifene