Osmotic device with wall comprising cellulose ether and permeabi

Details Osmotic device with wall comprising cellulose ether and permeabi Osmotic device with wall comprising cellulose ether and permeabi

1982-07-12

1985-05-28

Apley, Richard J.

Surgery

Controlled release therapeutic device or system

Osmotic or diffusion pumped device or system

604890, 424 19, 424 31, 424 32, A61K 922

Patent

active

045198012

ABSTRACT:
An osmotic delivery system is disclosed for dispensing a useful agent. The system comprises a semipermeable wall surrounding a compartment housing the agent. The wall comprises a cellulose ether, an organic solvent soluble polymer, and optionally an aqueous soluble polymer. A passageway in the wall connects the interior of the system with the exterior for dispensing an agent from the system.

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