US4915948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tablets having improved bioadhesion to mucous membranes
Assignee: Warner Lambert Co LLC
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Filing: 1987-08-31
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Granted: 1990-04-10
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Expires: 2007-08-31
Abstract
Abstract A tablet having improved bioadhesion to mucous membranes is disclosed. The tablet comprises effective amounts of a water-soluble biopolymer selected from the group consisting of a xanthan gum, a pectin and mixtures thereof; and a solid polyol having a solubility at room temperature in water greater than about 20 grams of polyol per 100 g of solution. Preferably the biopolymer is xanthan gum and the polyol is a sugar alcohol selected from the group consisting of sorbitol, xylitol, and mixtures thereof.
Inventors
- 👤 Andrew R. Gallopo
- 👤 Steven S. Dills
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:29
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/20; A61K9/2004; A61K9/2022; A61K9/205; A61K9/0012; A61K9/0053; A61K9/006; A61K9/2013; A61K9/2018
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
84 words
A tablet having improved bioadhesion to mucous membranes comprising: (a) a water-soluble natural biopolymer in an amount of from about 40 to about 80 weight percent of the tablet, selected from the group consisting of a xanthan gum, a pectin and mixtures thereof; and (b) a solid polyol in an amount of from about 20 to about 60 weight percent of the tablet and having a solubility at room temperature in water greater than about 20 grams of polyol per 100 g of solution.
Claim 2
Dependent Claim
84 words
A tablet having improved bioadhesion to mucous membranes comprising: (a) a water-soluble natural biopolymer in an amount of from about 40 to about 80 weight percent of the tablet, selected from the group consisting of a xanthan gum, a pectin and mixtures thereof; and (b) a solid polyol in an amount of from about 20 to about 60 weight percent of the tablet and having a solubility at room temperature in water greater than about 20 grams of polyol per 100 g of solution.
Claim 3
Dependent Claim
167 words
A tablet having improved bioadhesion to mucous membranes comprising (a) a xanthan gum present in amounts of about 40 to about 80% by weight of the composition; (b) a sugar alcohol having a solubility at room temperature in water greater than about 20 g per 100 g solution selected from the group consisting of sorbitol, xylitol, and mixtures, said sugar alcohol being present in an amount of about 20 to about 60% by weight of the composition; wherein there is additionally included an effective amount of a lubricant; wherein there is additionally included an effective amount of an active ingredient selected from the group consisting of flavorings, local anesthetics, local antiseptics, anti-cariogenic compounds, anti-inflammatory agents, antifungal agents, antiplaque agents, tooth desensitizers and mixtures thereof; wherein there is optionally included an effective amount of a vehicle; and wherein there is included an effective amount of sweetener selected from the group consisting of artificial sweeteners, high intensity sweeteners, and mixtures; such that the total of all components equals 100%.
Claim 4
Dependent Claim
167 words
A tablet having improved bioadhesion to mucous membranes comprising (a) a xanthan gum present in amounts of about 40 to about 80% by weight of the composition; (b) a sugar alcohol having a solubility at room temperature in water greater than about 20 g per 100 g solution selected from the group consisting of sorbitol, xylitol, and mixtures, said sugar alcohol being present in an amount of about 20 to about 60% by weight of the composition; wherein there is additionally included an effective amount of a lubricant; wherein there is additionally included an effective amount of an active ingredient selected from the group consisting of flavorings, local anesthetics, local antiseptics, anti-cariogenic compounds, anti-inflammatory agents, antifungal agents, antiplaque agents, tooth desensitizers and mixtures thereof; wherein there is optionally included an effective amount of a vehicle; and wherein there is included an effective amount of sweetener selected from the group consisting of artificial sweeteners, high intensity sweeteners, and mixtures; such that the total of all components equals 100%.
Claim 5
Dependent Claim
18 words
The tablet of claim 2 wherein said active ingredient is a liquid flavoring and said vehicle is present.
Claim 6
Dependent Claim
41 words
The tablet of claim 1 wherein said biopolymer is present in amounts of about 50 to about 70% by weight of the composition and said polyol is present in amounts of about 30 to about 50% by weight of the composition.
Claim 7
Dependent Claim
12 words
The tablet of claim 1 wherein said polyol is a sugar alcohol.
Claim 8
Dependent Claim
23 words
The tablet of claim 1 wherein said polyol is a sugar alcohol selected from the group consisting of sorbitol, xylitol, and mixtures thereof.
Claim 9
Dependent Claim
44 words
The tablet of claim 6 wherein said sugar alcohol is present in an amount of about 20 to about 60% by weight of the tablet and the biopolymer is present in an amount of about 40 to about 80% by weight of the tablet.
Claim 10
Dependent Claim
38 words
The tablet of claim 7 wherein said sugar alcohol is present in an amount of about 30 to about 50% by weight and said biopolymer is present in an amount of about 50 to about 70% by weight.
Claim 11
Dependent Claim
12 words
The tablet of claim 2 wherein said biopolymer is a xanthan gum.
Claim 12
Dependent Claim
12 words
The tablet of claim 7 wherein said biopolymer is a xanthan gum.
Claim 13
Dependent Claim
12 words
The tablet of claim 8 wherein said biopolymer is a xanthan gum.
Claim 14
Dependent Claim
16 words
The tablet of claim 1 wherein there is additionally included an effective amount of a lubricant.
Claim 15
Dependent Claim
20 words
The tablet of claim 12 wherein said lubricant is selected from the group consisting of metallic stearates and mixtures thereof.
Claim 16
Dependent Claim
11 words
The tablet of claim 13 wherein said lubricant is calcium stearate.
Claim 17
Dependent Claim
40 words
The tablet of claim 1 wherein there is additionally included effective amounts of an active agent selected from the group consisting of: flavorings, local antiseptics, local anesthetics, anti-cariogenic compounds, anti-inflammatory agents, antifungal agents, antiplaque agents, tooth desensitizers, and mixtures thereof.
Claim 18
Dependent Claim
23 words
The tablet of claim 15 wherein said active agent is a liquid and said tablet additionally contains an effective amount of a vehicle.
Claim 19
Dependent Claim
29 words
The tablet of claim 16 wherein said vehicle is selected from the group consisting of colloidal silica particles, magnesium aluminum silicate, dextrose, magnesium trisilicate, modified maltodextrin, and mixtures thereof.
Claim 20
Dependent Claim
12 words
The tablet of claim 17 wherein the active agent is a flavoring.
Claim 21
Dependent Claim
27 words
The tablet of claim 18 wherein said flavoring is selected from the group consisting of spearmint oil, cinnamon oil, oil of wintergreen, peppermint oil, and mixtures thereof.
Claim 22
Dependent Claim
19 words
The tablet of claim 17 wherein said vehicle is comprised of colloidal silica particles sintered together in chain-like formations.
Claim 23
Dependent Claim
30 words
The tablet of claim 1 wherein there is additionally included an effective amount of a sweetener selected from the group consisting of artificial sweeteners, high intensity sweeteners, and mixtures thereof.
Claim 24
Dependent Claim
20 words
The tablet of claim 15 wherein said active agent is an anti-cariogenic material comprising an orally ingestible fluoride containing compound.
Claim 25
Dependent Claim
25 words
The tablet of claim 22 wherein said active ingredient is selected from the group consisting of sodium fluoride, sodium monofluorophosphate, stannous fluoride and mixtures thereof.
Claim 26
Dependent Claim
45 words
The tablet of claim 2 wherein said xanthan gum is present in an amount of about 50 to about 70% by weight of the composition and said sugar alcohol is present in an amount of about 30 to about 50% by weight of the composition.
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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) | 1993-04-09 | 1993-10-09 | 1994-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-09 | 1997-10-09 | 1998-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-09 | 2001-10-09 | 2002-04-10 | $7700.00 | Window Closed / Lapsed |