New patent expiration for Purdue Pharma drug OXYCONTIN

Annual Drug Patent Expirations for OXYCONTIN Oxycontin is a drug marketed by Purdue Pharma Lp and is included in one NDA. It is available from five suppliers. There are twenty-one…
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New patent for DUSA drug LEVULAN

Annual Drug Patent Expirations for LEVULAN Levulan is a drug marketed by Dusa and is included in one NDA. It is available from one supplier. There are three patents protecting…
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