Taste masking compositions comprising spray dried microcapsules containing sucralfate and methods for preparing same
First Claim
1. A spray dried spheroidal microcapsule under about 150 microns in diameter which comprises in percentages by weight of the microcapsule composition:
- (a) sucralfate present in an amount from about 1% to about 70%; and
(b) a polymer soluble in the gastric fluids present in an amount from about 30% to about 99%.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention pertains to spray dried spheroidal microcapsules under about 150 microns in diameter which comprise in percentages by weight of the microcapsule composition (a) sucralfate present in an amount from about 1% to about 70%, and (b) a polymer soluble in the gastric fluids present in an amount from about 30% to about 99%. In another embodiment, the invention is directed at a taste masking composition which comprises a therapeutically effective amount of a spray dried spheroidal microcapsule core under about 150 microns in diameter and a matrix over the core wherein the taste masking composition comprises (A) a microcapsule core comprising in percentages by weight of the core composition (a) sucralfate present in an amount from about 1% to about 70%, and (b) a polymer soluble in the gastric fluids present in an amount from about 30% to about 99%; and (B) a matrix over the core comprising in percentages by weight of the matrix composition (a) a bulking agent present in an amount up to about 99.9%, and (b) a lubricating agent present in an amount from about 0.1% to about 7%.
-
Citations
47 Claims
-
1. A spray dried spheroidal microcapsule under about 150 microns in diameter which comprises in percentages by weight of the microcapsule composition:
-
(a) sucralfate present in an amount from about 1% to about 70%; and (b) a polymer soluble in the gastric fluids present in an amount from about 30% to about 99%. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A taste masking composition which comprises a therapeutically effective amount of a spray dried spheroidal microcapsule core under about 150 microns in diameter and a matrix over the core wherein the taste masking composition comprises:
-
(A) a microcapsule core comprising in percentages by weight of the core composition; (a) sucralfate present in an amount from about 1% to about 70%; and (b) a polymer soluble in the gastric fluids present in an amount from about 30% to about 99%; and (B) a matrix over the core comprising in percentages by weight of the matrix composition; (a) a bulking agent present in an amount up to about 99.9%; and (b) a lubricating agent present in an amount from about 0.1% to about 7%. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
-
21. A method for preparing spray dried spheroidal microcapsules under about 150 microns in diameter, which comprises the steps of:
-
(A) providing the following ingredients, in percentages by weight of the microcapsule composition; (a) sucralfate present in an amount from about 1% to about 70%; and (b) a polymer soluble in the gastric fluids present in an amount from about 30% to about 99%; and (B) preparing an aqueous homogeneous mixture of the ingredients in step (A), wherein sucralfate is present in a concentration from about 1% to about 60%, and the polymer soluble in the gastric fluids is present in a concentration from about 5% to about 60%, by weight of the aqueous mixture; and (C) feeding the mixture of step (B) into a spray dryer and spray drying the mixture under controlled conditions such that spheroidal microcapsules under about 150 microns in diameter are formed. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
-
-
33. A method for preparing a taste masking composition which comprises a therapeutically effective amount of a spray dried spheroidal microcapsule core under about 150 microns in diameter and a matrix over the core which comprises the steps of:
-
(A) providing the following ingredients of the microcapsule core in percentages by weight of the core composition; (a) sucralfate present in an amount from about 1% to about 70%; and (b) a polymer soluble in the gastric fluids present in an amount from about 30% to about 99%; and (B) preparing an aqueous homogeneous mixture of the ingredients in step (A), wherein sucralfate is present in a concentration from about 1% to about 60%, and the polymer soluble in the gastric fluids is present in a concentration from about 5% to about 60%, by weight of the aqueous mixture; and (C) feeding the mixture of step (B) into a spray dryer and spray drying the mixture under controlled conditions such that spheroidal microcapsules under about 150 microns in diameter are formed; (D) providing the following ingredients of the matrix, in percentages by weight of the matrix composition; (a) a bulking agent present in an amount up to about 99.9%; and (b) a lubricating agent present in an amount from about 0.1% to about 7%; and (E) preparing a homogeneous mixture of the ingredients in step (D); and (F) preparing a homogeneous mixture of the spray dried microcapsules from step (C) and the matrix mixture from step (E) and compressing the homogeneous mixture into tablets. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41, 42)
-
-
43. A spray dried spheroidal microcapsule under about 150 microns in diameter prepared by a method which comprises the steps of:
-
(A) providing the following ingredients, in percentages by weight of the microcapsule composition; (a) sucralfate present in an amount from about 1% to about 70%; and (b) a polymer soluble in the gastric fluids present in an amount from about 30% to about 99%; and (B) preparing an aqueous homogeneous mixture of the ingredients in step (A), wherein sucralfate is present in a concentration from about 1% to about 60%, and the polymer soluble in the gastric fluids is present in a concentration from about 5% to about 60%, by weight of the aqueous mixture; and (C) feeding the mixture of step (B) into a spray dryer and spray drying the mixture under controlled conditions such that spheroidal microcapsules under about 150 microns in diameter are formed.
-
-
44. A taste masking composition which comprises a therapeutically effective amount of a spray dried spheroidal microcapsule core under about 150 microns in diameter and a matrix over the core prepared by a method which comprises the steps of:
-
(A) providing the following ingredients of the microcapsule core in percentages by weight of the core composition; (a) sucralfate present in an amount from about 1% to about 70%; and (b) a polymer soluble in the gastric fluids present in an amount from about 30% to about 99%; and (B) preparing an aqueous homogeneous mixture of the ingredients in step (A), wherein sucralfate is present in a concentration from about 1% to about 60%, and the polymer soluble in the gastric fluids is present in a concentration from about 5% to about 60%, by weight of the aqueous mixture; and (C) feeding the mixture of step (B) into a spray dryer and spray drying the mixture under controlled conditions such that spheroidal microcapsules under about 150 microns in diameter are formed; (D) providing the following ingredients of the matrix, in percentages by weight of the matrix composition; (a) a bulking agent present in an amount up to about 99.9%; and (b) a lubricating agent present in an amount from about 0.1% to about 7%; and (E) preparing a homogeneous mixture of the ingredients in step (D); and (F) preparing a homogeneous mixture of the spray dried microcapsules from step (C) and the matrix mixture from step (E) and compressing the homogeneous mixture into tablets.
-
-
45. A taste masking composition which comprises a pharmaceutically acceptable carrier and a therapeutically effective amount of a spray dried spheroidal microcapsule core under about 150 microns in diameter wherein the microcapsule core composition comprises:
-
(a) sucralfate present in an amount from about 1% to about 70%; and (b) a polymer soluble in the gastric fluids present in an amount from about 30% to about 99%. - View Dependent Claims (46)
-
-
47. A method for preparing a taste masking composition which comprises a pharmaceutically acceptable carrier and a therapeutically effective amount of a spray dried spheroidal microcapsule core under about 150 microns in diameter which comprises the steps of:
-
(A) providing the following ingredients, in percentages by weight of the microcapsule composition; (a) sucralfate present in an amount from about 1% to about 70%; and (b) a polymer soluble in the gastric fluids present in an amount from about 30% to about 99%; and (B) preparing an aqueous homogeneous mixture of the ingredients in step (A), wherein sucralfate is present in a concentration from about 1% to about 60%, and the polymer soluble in the gastric fluids is present in a concentration from about 5% to about 60%, by weight of the aqueous mixture; and (C) feeding the mixture of step (B) into a spray dryer and spray drying the mixture under controlled conditions such that spheroidal microcapsules under about 150 microns in diameter are formed; (D) heating and mixing the pharmaceutically acceptable carrier in water at an elevated temperature;
(E) cooling the pharmaceutically acceptable carrier to a temperature below about 120°
C.;(F) preparing a homogeneous mixture of the spray dried microcapsules from step (C) and the pharmaceutically acceptable carrier from step (E); and (G) forming the resulting mixture into shapes.
-
Specification