US4885281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sucralfate suspension
Assignee: Merck Patent GmbH
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Filing: 1988-03-21
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Granted: 1989-12-05
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Expires: 2008-03-21
Abstract
Abstract The invention relates to formulations in the form of suspensions containing sucralfate, characterized in that they contain, based on the sucralfate, 1-5% by weight of xanthan gum and 1-12.5% by weight of at least one peptiser.
Inventors
- 👤 Ullrich Hanstein
- 👤 Lothar Bauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:24
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0087; A61K9/0095; A61K31/00; A61K31/70; A61K47/00; A61K47/02; A61K47/30; A61K47/36; A61P; A61P1/00; A61P1/04
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
33 words
Pharmaceutical formulations in the form of suspensions containing sucralfate, characterised in that they contain, based on the sucralfate, 1-5% by weight of xanthan gum and 1-12.5% by weight of at least one peptiser.
Claim 2
Dependent Claim
33 words
Pharmaceutical formulations in the form of suspensions containing sucralfate, characterised in that they contain, based on the sucralfate, 1-5% by weight of xanthan gum and 1-12.5% by weight of at least one peptiser.
Claim 3
Dependent Claim
22 words
Pharmaceutical formulations according to claim 1, characterised in that the peptiser is at least one salt of phosphoric acid or citric acid.
Claim 4
Dependent Claim
23 words
Pharmaceutical formulations according to claim 1 or 2, characterised in that they contain 1-40% by weight of sucralfate, based on the total amount.
Claim 5
Dependent Claim
41 words
Method of stabilising pharmaceutical formulations in the form of suspensions containing sucralfate, characterised in that 1-5% by weight of xanthan gum and 1-12.5% by weight of at least one peptiser, based on the content of sucralfate, are added to these formulations.
Claim 6
Dependent Claim
41 words
Method of stabilising pharmaceutical formulations in the form of suspensions containing sucralfate, characterised in that 1-5% by weight of xanthan gum and 1-12.5% by weight of at least one peptiser, based on the content of sucralfate, are added to these formulations.
References Cited (Backward Citations)
EP0055313A1
Cited
EP0107209A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-12-04 | 1993-06-05 | 1993-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-12-04 | 1997-06-05 | 1997-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-12-04 | 2001-06-05 | 2001-12-05 | $7700.00 | Window Closed / Lapsed |