Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Particulate form
Reexamination Certificate
2007-07-24
2007-07-24
Tran, Susan (Department: 1615)
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Particulate form
C424S451000, C424S452000, C424S489000, C424S491000, C424S497000
Reexamination Certificate
active
10156622
ABSTRACT:
The invention is directed to oral modified/controlled release drug formulations which provide a rapid initial onset of effect and a prolonged duration of effect. Preferably, the peak concentration is lower than that provided by the reference standard for immediate release formulations of the drug, and the duration of effect falls rapidly at the end of the dosing interval.
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Darke Andrew
Krishnamurthy Thinnayam N.
Davidson, Davidson & Kappel
Purdue Pharma
Tran Susan
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