Anti-misuse solid oral pharmaceutical form provided with a specific modified release profile
First Claim
1. Solid oral pharmaceutical form with modified release of at least one active ingredient, containing at least microparticles containing said active ingredient and at least one viscosifying agent in a form isolated from said microparticles of active ingredient, characterized in that said microparticles possess an average diameter ranging from 100 to 600 μ
- m, and are formed by a core containing at least said active ingredient and coated with at least one coating layer,said core being formed by a support particle covered by a layer comprising at least said active ingredient,said coating layer being formed by a material composed of at least;
25 to 70% by weight relative to the total weight of said coating, of at least one polymer A which is insoluble in water,30 to 75% by weight relative to the total weight of said coating, of at least one polymer B which is insoluble in water below pH 5 and soluble in water above pH 7, and0 to 25% by weight relative to the total weight of said coating, of at least one plasticizer,said polymers A and B being in a polymer(s) B/polymer(s) A weight ratio comprised between 0.25 and 4, andsaid coating layer representing at least 35% by weight, relative to the total weight of said microparticle.
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Accused Products
Abstract
The present invention relates to a solid oral pharmaceutical form, with modified release of at least one active ingredient, containing at least microparticles containing said active ingredient and at least one viscosifying agent in a form isolated from said microparticles of active ingredient, characterized in that said microparticles possess an average diameter ranging from 100 to 600 μm, and are formed by a core containing at least said active ingredient and coated with at least one coating layer,
- said core being formed by a support particle covered by a layer comprising at least said active ingredient,
- said coating layer being formed by a material composed of at least 25 to 70% by weight relative to the total weight of said coating, of at least one polymer A insoluble in water, 30 to 75% by weight relative to the total weight of said coating, of at least one polymer B insoluble in water below pH 5 and soluble in water above pH 7, and 0 to 25% by weight relative to the total weight of said coating, of at least one plasticizer,
- said polymers A and B being in a polymer(s) B/polymer(s) A weight ratio comprised between 0.25 and 4, and
- said coating layer representing at least 35% by weight, relative to the total weight of said microparticle.
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Citations
22 Claims
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1. Solid oral pharmaceutical form with modified release of at least one active ingredient, containing at least microparticles containing said active ingredient and at least one viscosifying agent in a form isolated from said microparticles of active ingredient, characterized in that said microparticles possess an average diameter ranging from 100 to 600 μ
- m, and are formed by a core containing at least said active ingredient and coated with at least one coating layer,
said core being formed by a support particle covered by a layer comprising at least said active ingredient, said coating layer being formed by a material composed of at least; 25 to 70% by weight relative to the total weight of said coating, of at least one polymer A which is insoluble in water, 30 to 75% by weight relative to the total weight of said coating, of at least one polymer B which is insoluble in water below pH 5 and soluble in water above pH 7, and 0 to 25% by weight relative to the total weight of said coating, of at least one plasticizer, said polymers A and B being in a polymer(s) B/polymer(s) A weight ratio comprised between 0.25 and 4, and said coating layer representing at least 35% by weight, relative to the total weight of said microparticle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
- m, and are formed by a core containing at least said active ingredient and coated with at least one coating layer,
Specification