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US4716033A Expired / Lapsed US ⏱️ 0.0 years remaining

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
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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 18:31
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.

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

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