U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Galenic formulations with programmed release containing naproxen

Patent 4888178 Issued on December 19, 1989. Estimated Expiration Date: Icon_subject April 12, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

2793979

3044938

Sustained release tablet formulations
Patent #: 4012498
Issued on: 03/15/1977
Inventor: Kornblum ,   et al.

Preparation of fabricated baked potato product
Patent #: 4167588
Issued on: 09/11/1979
Inventor: Willard

Method for preparing a pharmaceutical controlled release composition
Patent #: 4572833
Issued on: 02/25/1986
Inventor: Pedersen ,   et al.

Sustained-release preparation of pinacidil Patent #: 4720387
Issued on: 01/19/1988
Inventor: Sakamoto ,   et al.

Inventors

Assignee

Application

No. 336507 filed on 04/12/1989

US Classes:

424/468, Sustained or differential release type424/470, Where particles are granulated424/472Layered unitary dosage forms

Examiners

Primary: Dixon, William R. Jr.
Assistant: Sohn, Miriam

Attorney, Agent or Firm

International Class

A61K 009/24

Foreign Application Priority Data

1986-07-23 IT

Abstract

A galenic formulations are disclosed with programmed release, to be administered orally containing as the active ingredient a compound having antiphlogistic, analgesic and antipyretic activity like, for instance, an arylacetic or an arylpropionic acid, and pharmaceutically acceptable salts thereof. In these new formulations, a portion of the active ingredient is released in a short time, so that the drug can quickly develop its therapeutic action and reach the necessary hematic levels, while the remaining portion of the active constituent is released in a longer interval of time so as to allow therapeutic coverage until subsequent administration. The therapeutic coverage can even last twenty-four hours. Thus, the new galenic formulations object of the present invention are suitable for administration one a day.

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