2241
The objective of this study was to estimate the cost - effectiveness of alendronate to prevent fractures in osteopenic postmenopausal women without a history of fracture in Japan .
 Chemical: alendronate
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: alendronate