Xifaxan (rifaximin) - Alfa Wassermann, Bausch Health, Norgine
Xifaxan: Newly added patent in Orange Book (Orange Book) - Jul 2, 2019 - Patent expiry on October 2, 2029 
Patent
https://www.accessdata.fda.gov/scripts/cder/ob/search_patent.cfm?listed=new
 
Jul 2, 2019
 
 
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