New patent for Salix Pharms drug XIFAXAN

Annual Drug Patent Expirations for XIFAXAN Xifaxan is a drug marketed by Salix Pharms and is included in one NDA. It is available from two suppliers. There are twenty-seven patents…
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New patent expiration for Endo Pharms drug OPANA ER

Annual Drug Patent Expirations for OPANA+ER Opana Er is a drug marketed by Endo Pharms and is included in two NDAs. There are eleven patents protecting this drug and six…
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