Patent · US Active

Controlled release formulations having rapid onset and rapid decline of effective plasma drug concentrations

US7438930B2 · kind B2 · utility

20Cited by

20References

11Claims

0Family size

Assignee

PURDUE PHARMA L.P. · US

Inventors

Thinnayam N. Krishnamurthy · Scarborough, CA
Andrew Darke · Schreiber, CA

Key dates

Filing date	Jul 17, 2007
Grant date	Oct 21, 2008
Priority date	—
Expiry date	Jul 17, 2027

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61P25/14
WIPO fieldPharmaceuticals
WIPO sectorChemistry

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.