Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Specially adapted for ruminant animal
Patent
1990-04-23
1991-10-22
Page, Thurman A.
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Specially adapted for ruminant animal
424473, 424422, 424423, 424426, A23K 118
Patent
active
050594230
ABSTRACT:
A delivery system is disclosed for delivering a beneficial agent to an animal. The delivery system comprises a wall that surrounds a lumen, said wall comprising a composition that limits the passage of fluid into the system and a composition that permits the passage of fluid into the system. The lumen comprises a beneficial agent and an expandable member. The delivery system comprises an exit means for delivering the beneficial agent.
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Cortese Richard
Eckenhoff James B.
Magruder Judy A.
Peery John R.
Wright Jeremy C.
ALZA Corporation
Horne Leon R.
Mandell Edward L.
Page Thurman A.
Sabatine Paul L.
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