Xifaxan (rifaximin) - Alfa Wassermann, Bausch Health, Norgine
Patent delisted for Xifaxan from Orange Book (Orange Book) - Nov 20, 2019 - Patent no. 10314828 
Patent
https://www.accessdata.fda.gov/scripts/cder/ob/search_patent.cfm?listed=delisted
 
Nov 20, 2019
 
 
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