US4261971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pharmaceutically preparation comprising a cardiac glycoside in combination with a polymer
Assignee: Hassle AB
•
Filing: 1979-12-17
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Granted: 1981-04-14
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Expires: 1999-12-17
Abstract
Abstract A solid pharmaceutical preparation for administration in dosage unit form comprising a therapeutically effective cardiac glycoside, whereby each dosage unit is to comprise a plurality of bodies, each of said bodies having a pharmaceutically inert core and a layer thereon containing the glycoside and a polymer insoluble in gastric juice and soluble in intestinal juice, a process for preparing such preparation and a method of treatment employing the same.
Inventors
- 👤 Curt H. Appelgren
- 👤 Conny B. Bogentoft
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:53
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/70; A61K31/7028; A61K31/7034; A61K31/704; A61K9/00; A61K9/14; A61K9/16; A61K9/167; A61K9/1676; A61M; A61M5/00; A61M5/178; A61M5/31; A61M5/32; A61M5/3205; A61M5/3278
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
100 words
A pharmaceutical preparation comprising a cardiac glycoside in combination with a polymer, characterized in that said pharmaceutical preparation is in the form of a plurality of small bodies, each body comprising a fraction of a therapeutically effective dosage of the cardiac glycoside, whereby each body has a core made up of pharmaceutically indifferent material, and on said core a layer made up of a composition comprising the cardiac glycoside and an anionic carboxylic polymer being difficultly soluble or insoluble below a given pH value in the interval of pH 4-7.5 but being soluble at a pH above said given value.
Claim 2
Dependent Claim
100 words
A pharmaceutical preparation comprising a cardiac glycoside in combination with a polymer, characterized in that said pharmaceutical preparation is in the form of a plurality of small bodies, each body comprising a fraction of a therapeutically effective dosage of the cardiac glycoside, whereby each body has a core made up of pharmaceutically indifferent material, and on said core a layer made up of a composition comprising the cardiac glycoside and an anionic carboxylic polymer being difficultly soluble or insoluble below a given pH value in the interval of pH 4-7.5 but being soluble at a pH above said given value.
Claim 3
Dependent Claim
25 words
A solid pharmaceutical preparation according to claim 1 characterized in that the layer is a layer applied by spraying a solution of the components thereof.
Claim 4
Dependent Claim
102 words
A process for preparing a pharmaceutical preparation comprising a cardiac glycoside in combination with a polymer, characterized in that said pharmaceutical preparation is given the form of a plurality of small bodies, each body comprising a fraction of a therapeutically effective dosage of the cardiac glycoside, by providing a large number of cores made up of pharmaceutically indifferent material, with a layer made up of a composition comprising the cardiac glycoside and an anionic carboxylic polymer being difficultly soluble or insoluble below a given pH value in the interval of pH 4-7.5 but being soluble at a pH above said given value.
Claim 5
Dependent Claim
102 words
A process for preparing a pharmaceutical preparation comprising a cardiac glycoside in combination with a polymer, characterized in that said pharmaceutical preparation is given the form of a plurality of small bodies, each body comprising a fraction of a therapeutically effective dosage of the cardiac glycoside, by providing a large number of cores made up of pharmaceutically indifferent material, with a layer made up of a composition comprising the cardiac glycoside and an anionic carboxylic polymer being difficultly soluble or insoluble below a given pH value in the interval of pH 4-7.5 but being soluble at a pH above said given value.
Claim 6
Dependent Claim
22 words
A process according to claim 3 characterized in that the outer layer is applied by adding a solution of the components thereof.
Claim 7
Dependent Claim
15 words
A process according to claim 4 characterized in that the solution is applied by spraying.
Claim 8
Dependent Claim
21 words
A process according to claim 4 or 5 characterized in that the outer layer is applied in a fluid bed apparatus.
Claim 9
Dependent Claim
24 words
A method of treatment of cardiac disorders comprising administrating to a mammal including man a therapeutically effective dose of the preparation of claim 1.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-04-13 | 1984-10-13 | 1985-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-04-13 | 1988-10-13 | 1989-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-04-13 | 1992-10-13 | 1993-04-14 | $7700.00 | Window Closed / Lapsed |