Osmotic device with dual thermodynamic activity
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United States of America Patent
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-
Sep 16, 1986
Issued Date -
N/A
app pub date -
Dec 21, 1984
filing date -
May 11, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An osmotic system is disclosed comprising a wall formed in at least a part of a semipermeable material that surrounds a compartment. The compartment contains a first osmotic composition comprising a beneficial agent, and a second and different osmotic composition. A passageway in the wall connects the first composition with the exterior of the system.
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