Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Tablets – lozenges – or pills
Patent
1992-01-29
1995-04-18
Page, Thurman K.
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Tablets, lozenges, or pills
424494, 424495, 424480, A61K 922
Patent
active
054076862
ABSTRACT:
A sustained release tablet adapted to provide an initial immediate release of an active agent, a period of no release of the active agent, followed by a substantially constant, rate of release of the active agent. The tablet includes (a) a compressed tablet core containing an active agent, an insoluble binder and an insoluble; (b) a barrier coating formed over the tablet core, the barrier coating including a mixture of soluble and insoluble polymers and a plasticizer; (c) an active coating deposited over the barrier coating, the active coating including an active agent, a soluble polymer and a plasticizer; and (d) a film coating formed over the active coating, the film coating containing a soluble polymer and plasticizer.
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Sustained Release Medications, J. C. Johnson, Noyes Data Corporation, Park Ridge, N.J., 1980 pp. 3 and 4.
Invoice #29944, Jul. 12, 1989, to Thompson Medical Company.
Bhalani Vinayak T.
Patel Satischandra P.
Benston William E.
Page Thurman K.
Sidmak Laboratories, Inc.
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