Patent · US Active

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

US8580310B2 · kind B2 · utility

16Cited by

22References

7Claims

0Family size

Assignee

PURDUE PHARMA L.P. · US

Inventors

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

Key dates

Filing date	Sep 11, 2008
Grant date	Nov 12, 2013
Priority date	—
Expiry date	Jan 7, 2031

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.