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Generated: December 12, 2017

DrugPatentWatch Database Preview

Details for Patent: 5,968,551

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Summary for Patent: 5,968,551

Title: Orally administrable opioid formulations having extended duration of effect
Abstract:Sustained release oral solid dosage forms of opioid analgesics are provided as multiparticulate systems which are bioavailable and which provide effective blood levels of the opioid analgesic for at least about 24 hours. A unit dose of the opioid analgesic contains a plurality of substrates including the opioid analgesic in sustained release form. The substrates have a diameter from about 0.1 mm to about 3 mm.
Inventor(s): Oshlack; Benjamin (New York, NY), Chasin; Mark (Manalapan, NJ)
Assignee: Purdue Pharma L.P. (Norwalk, CT)
Application Number:08/508,246
Patent Claim Types:
see list of patent claims
Dosage form; Formulation; Process; Use;

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International Patent Family for Patent: 5,968,551

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Finland943168► Subscribe
China1230154► Subscribe
China1103289► Subscribe
China1292742► Subscribe
China1116521► Subscribe
China1121213► Subscribe
China1094755► Subscribe
China1240132► Subscribe
United Kingdom9403922► Subscribe
United Kingdom2288117► Subscribe
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Due to the complexity of determining patent expirations even in a single country, compounded by the diversity of global patent laws, it is advisable to have patent counsel verify freedom to operate.

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