Controlled release device with an impermeable coating having an

Details Controlled release device with an impermeable coating having an Controlled release device with an impermeable coating having an

1989-08-25

1991-04-02

Page, Thurman K.

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Tablets, lozenges, or pills

424473, 424 78, 424 79, 424482, 424483, A61K 922

Patent

active

050046144

ABSTRACT:
Controlled release devices having a core including an active agent and an outer coating which is substantially impermeable to the entrance of an environmental fluid and substantially impermeable to the release of the active agent during a dispensing period allow the controlled release of the active agent through an orifice in the outer coating.

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