System for the controlled release of active agents and a process

Details System for the controlled release of active agents and a process System for the controlled release of active agents and a process

1995-03-23

1998-11-24

Phelan, D. Gbrielle

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Tablets, lozenges, or pills

424468, 6048901, 6048921, A61K 924

Patent

active

058403353

ABSTRACT:
A system for the controlled release of an active agent to an environment of use, said system having a predetermined release rate of the active agent to the environment of use, comprising: a) a shell comprised of a wall formed of a water-insoluble material which is permeable to the passage of an external fluid, and b) a core which is surrounded by said shell, said core comprised of i) a water-soluble active agent, and ii) a soluble polymeric adjuvant capable of unlimited swelling.

REFERENCES:
patent: 3845770 (1974-11-01), Theeuwes et al.
patent: 3916899 (1975-11-01), Theeuwes et al.
patent: 4016880 (1977-04-01), Theeuwes et al.
patent: 4036227 (1977-07-01), Zaffaroni et al.
patent: 4200098 (1980-04-01), Ayer et al.
patent: 4326525 (1982-04-01), Swanson et al.
patent: 4612008 (1986-09-01), Wong et al.
patent: 4615698 (1986-10-01), Guittard et al.
patent: 4618487 (1986-10-01), DuBois et al.
patent: 4624847 (1986-11-01), Ayer et al.
patent: 4627850 (1986-12-01), Deters et al.
patent: 4662880 (1987-05-01), Hamel et al.
patent: 4693886 (1987-09-01), Ayer et al.
patent: 4747847 (1988-05-01), Magruder et al.
patent: 4765989 (1988-08-01), Wong et al.
patent: 4783337 (1988-11-01), Wong et al.
patent: 4784858 (1988-11-01), Ventouras
patent: 4857330 (1989-08-01), Stephens et al.
patent: 4992278 (1991-02-01), Khanna
The Controlled Porosity Osmotic Pump, Gaylen M. Zentner, et al, Journal of Controlled Release, 1 (1985) pp. 269-282.

Affiliated with

Also associated with

Rating

System for the controlled release of active agents and a process does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System for the controlled release of active agents and a process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for the controlled release of active agents and a process will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1699412