US4716033A
Expired / Lapsed
US
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Medicament adsorbates with surfactant and their preparation
Assignee: Warner Lambert Co LLC
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Filing: 1986-03-27
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Granted: 1987-12-29
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Expires: 2006-03-27
Abstract
Abstract A medicament adsorbate and process for making same. The medicament adsorbate comprises a complex magnesium aluminum, silicate having sorbed therein a medicament drug and a surfactant.
Inventors
- 👤 John Denick, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:02
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/14; A61K9/141; A61K9/143
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
21 words
A medicament adsorbate which comprises: a complex magnesium aluminum silicate having sorbed therein a solution of medicament drug and a surfactant.
Claim 2
Dependent Claim
21 words
A medicament adsorbate which comprises: a complex magnesium aluminum silicate having sorbed therein a solution of medicament drug and a surfactant.
Claim 3
Dependent Claim
53 words
The medicament absorbate of claim 1 wherein the medicament drug is present in an amount of about 1 to about 35% by weight and the complex magnesium aluminum silicate is present in an amount of about 65% to about 99% by weight, all percents herein are by weight percent of the medicament absorbate.
Claim 4
Dependent Claim
26 words
The medicament absorbate of claim 1 wherein the surfactant is present in an amount of about 0.05% to about 4% by weight of the medicament absorbate.
Claim 5
Dependent Claim
21 words
the medicament absorbate of claim 1 further comprising a solvent content up to about 20% by weight of the medicament absorbate.
Claim 6
Dependent Claim
23 words
The medicament absorbate of claim 1 further comprising a solvent content from about 2% to about 15% by weight of the medicament absorbate.
Claim 7
Dependent Claim
23 words
The medicament absorbate of claim 1 wherein the surfactant is selected from the group consisting of sodium lauryl sulfate, Pluronics and mixtures thereof.
Claim 8
Dependent Claim
75 words
The medicament absorbate of claim 1 wherein the complex magnesium aluminum silicate has the following typical chemical analysis: ______________________________________
Ratio to
Percent by Weight
Aluminum Oxide
______________________________________
Silicon dioxide
55 to 70 3.2 to 35
Magnesium oxide
2.9 to 25 0.17 to 12.5
Aluminum oxide
2.0 to 17 1
Ferric oxide
0.4 to 1.8
Calcium oxide
1.1 to 2.4
Sodium oxide
1.0 to 3.8
Potassium oxide
0.2 to 1.9
Ignition Loss
5.5 to 12.6
______________________________________
Claim 9
Dependent Claim
75 words
The medicament adsorbate of claim 1 wherein the complex magnesium aluminum silicate has the following typical chemical analysis: ______________________________________
Ratio to
Percent by Weight
Aluminum Oxide
______________________________________
Silicon dioxide
56 to 59 14.0 to 35
Magnesium oxide
21 to 24 5.2 to 12.0
Aluminum oxide
2.0 to 4.0 1
Ferric oxide
0.4 to 0.6
Calcium oxide
1.1 to 1.5
Sodium oxide
2.5 to 3.5
Potassium oxide
0.5 to 1.0
Ignition Loss
5.5 to 12.6
______________________________________
Claim 10
Dependent Claim
53 words
A process for preparing a medicament adsorbate which comprises: admixing a complex magnesium aluminum silicate with a medicament drug, a surfactant and a sufficient amount of solvent to dissolve the medicament drug and surfactant to form a mass containing said medicament drug and surfactant in an adsorbed condition, and recovering the medicament adsorabte.
Claim 11
Dependent Claim
53 words
A process for preparing a medicament adsorbate which comprises: admixing a complex magnesium aluminum silicate with a medicament drug, a surfactant and a sufficient amount of solvent to dissolve the medicament drug and surfactant to form a mass containing said medicament drug and surfactant in an adsorbed condition, and recovering the medicament adsorabte.
Claim 12
Dependent Claim
24 words
The process of claim 9 wherein the solvent is present in amounts from about 10% to about 60% by weight of the medicament adsorbate.
Claim 13
Dependent Claim
52 words
The process of claim 9 wherein the medicament drug is present in an amount of about 1% to about 35% by weight and the complex magnesium aluminum silicate is present in an amount of about 65% to about 99% by weight, all percents herein are by weight percent of the medicament adsorbate.
Claim 14
Dependent Claim
25 words
The process of claim 9 wherein the surfactant is present in an amount of about 0.05% to about 4% by weight of the medicament adsorbate.
Claim 15
Dependent Claim
25 words
The process of claim 9 further comprising drying the mass to a final solvent content up to about 20% by weight of the medicament adsorbate.
Claim 16
Dependent Claim
28 words
The process of claim 9 wherein the solvent is present in an amount from about 1 to about 20 times by weight of the complex magnesium aluminum silicate.
Claim 17
Dependent Claim
41 words
A medicated composition which comprises a pharmaceutically acceptable carrier and from about 1% to about 60% by weight of the final composition of a medicament adsorbate containing a complex magnesium aluminum silicate having sorbed therein a medicament drug and a surfactant.
Claim 18
Dependent Claim
41 words
A medicated composition which comprises a pharmaceutically acceptable carrier and from about 1% to about 60% by weight of the final composition of a medicament adsorbate containing a complex magnesium aluminum silicate having sorbed therein a medicament drug and a surfactant.
Claim 19
Dependent Claim
30 words
The medicated composition of claim 15 wherein the pharmaceutically acceptable carrier is selected from a group consisting of a lozenge, a tablet, suspension, toffee, nougat, chewy candy and chewing gum.
Claim 20
Dependent Claim
56 words
A medicated confectionery product comprising: a bulking agent of up to about 99%; a therapeutically effective amount of a medicament adsorbate comprising; a complex magnesium aluminum silicate having sorbed therein a medicament drug and a surfactant, said medicament adsorbate being admixed in the confectionery product. all percents herein are by weight of the medicated confectionery product.
Claim 21
Dependent Claim
56 words
A medicated confectionery product comprising: a bulking agent of up to about 99%; a therapeutically effective amount of a medicament adsorbate comprising; a complex magnesium aluminum silicate having sorbed therein a medicament drug and a surfactant, said medicament adsorbate being admixed in the confectionery product. all percents herein are by weight of the medicated confectionery product.
Claim 22
Dependent Claim
81 words
A medicated chewing gum product containing a therapeutically effective amount of medicament drug which comprises: a chewing gum composition in an amount up to about 99% comprising; a gum base, and a sweetener; a therapeutically effective amount of a medicament adsorbate comprising a complex magnesium aluminum silicate having sorbed thereon a dispersion of a medicament drug and a surfactant, said medicament adsorbate being admixed in the chewing gum composition, all percents herein are by weight of the medicated chewing gum product.
Claim 23
Dependent Claim
81 words
A medicated chewing gum product containing a therapeutically effective amount of medicament drug which comprises: a chewing gum composition in an amount up to about 99% comprising; a gum base, and a sweetener; a therapeutically effective amount of a medicament adsorbate comprising a complex magnesium aluminum silicate having sorbed thereon a dispersion of a medicament drug and a surfactant, said medicament adsorbate being admixed in the chewing gum composition, all percents herein are by weight of the medicated chewing gum product.
References Cited (Backward Citations)
US2523204A
Cited
US2678902A
Cited
US3140978A
Cited
US3352752A
Cited
US3337402A
Cited
US3432593A
Cited
US3567819A
Cited
US3636200A
Cited
US4029797A
Cited
US3998973A
Cited
US4116866A
Cited
US4145440A
Cited
US4581232A
Cited
US4632822A
Cited
US4632823A
Cited
US4632821A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-12-28 | 1991-06-29 | 1991-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-12-28 | 1995-06-29 | 1995-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-12-28 | 1999-06-29 | 1999-12-29 | $7700.00 | Window Closed / Lapsed |