Taste-masked pharmaceutical compositions
First Claim
1. A pharmaceutical composition comprising:
- (1) a plurality of taste-masked particles, wherein each taste-masked particle comprises;
(a) a drug-containing core particle;
(b) a taste-masking membrane disposed on said drug-containing core particle comprising a combination of a water-insoluble polymer and a gastrosoluble polymer, wherein the water-insoluble polymer is ethylcellulose and the gastrosoluble polymer is an aminoalkyl methacrylate copolymer;
wherein the weight ratio of the water-insoluble polymer to the gastrosoluble polymer in the taste-masking membrane is about 50/50, and the taste-masking membrane thickness ranges from about 10% to 30% by weight of the coated particle,and the pharmaceutical composition releases greater than or equal to about 60% of the total amount of drug in 30 minutes when tested for dissolution using United States Pharmacopoeia Apparatus 2 using paddles at 50 rpm in 900 mL of 0.1 N HCl at pH 1.2; and
(2) a plurality of rapidly-dispersing microgranules having an average particle size of not more than about 400 μ
m comprising (i) a disintegrant and (ii) a sugar alcohol or a saccharide or a combination thereof, wherein each of said disintegrant and sugar alcohol or saccharide is present in the form of particles having an average particle diameter of not more than about 30 μ
m, and wherein the pharmaceutical composition is an orally disintegrating tablet.
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Abstract
There is provided a method for preparing an orally disintegrating tablet (ODT) composition comprising microparticles of one or more taste-masked active pharmaceutical ingredient(s), rapidly-dispersing microgranules, and other optional, pharmaceutically acceptable excipients wherein the ODT disintegrates on contact with saliva in the buccal cavity in about 60 seconds forming a smooth, easy-to-swallow suspension. Furthermore, the microparticles (crystals, granules, beads or pellets containing the active) applied with a taste-masking membrane comprising a combination of water-insoluble and gastrosoluble polymers release not less than about 60% of the dose is in the stomach in about 30 minutes, thus maximizing the probability of achieving bioequivalence to the reference IR product having rapid onset of action (short Tmax). A process for preparing such compositions for oral administration using conventional fluid-bed equipment and rotary tablet press is also disclosed.
250 Citations
12 Claims
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1. A pharmaceutical composition comprising:
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(1) a plurality of taste-masked particles, wherein each taste-masked particle comprises; (a) a drug-containing core particle; (b) a taste-masking membrane disposed on said drug-containing core particle comprising a combination of a water-insoluble polymer and a gastrosoluble polymer, wherein the water-insoluble polymer is ethylcellulose and the gastrosoluble polymer is an aminoalkyl methacrylate copolymer;
wherein the weight ratio of the water-insoluble polymer to the gastrosoluble polymer in the taste-masking membrane is about 50/50, and the taste-masking membrane thickness ranges from about 10% to 30% by weight of the coated particle,and the pharmaceutical composition releases greater than or equal to about 60% of the total amount of drug in 30 minutes when tested for dissolution using United States Pharmacopoeia Apparatus 2 using paddles at 50 rpm in 900 mL of 0.1 N HCl at pH 1.2; and (2) a plurality of rapidly-dispersing microgranules having an average particle size of not more than about 400 μ
m comprising (i) a disintegrant and (ii) a sugar alcohol or a saccharide or a combination thereof, wherein each of said disintegrant and sugar alcohol or saccharide is present in the form of particles having an average particle diameter of not more than about 30 μ
m, and wherein the pharmaceutical composition is an orally disintegrating tablet. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification