Therapeutic compositions with enhanced bioavailability
First Claim
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1. A pharmaceutical composition in dry solid form comprising a mixture of a therapeutically effective amount of a poorly water soluble drug and a non-toxic, pharmacologically acceptable, water-soluble polymer;
- said mixture being the product of a melt mix or of a dried solution and said mixture in dry solid form having been treated with solution comprising water and a minor amount of a wetting agent selected from anionic and cationic surfactants and then dried.
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Abstract
Novel compositions comprising wetted mixtures of poorly soluble drugs with water soluble polymers useful in increasing bioavailability are disclosed.
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23 Claims
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1. A pharmaceutical composition in dry solid form comprising a mixture of a therapeutically effective amount of a poorly water soluble drug and a non-toxic, pharmacologically acceptable, water-soluble polymer;
- said mixture being the product of a melt mix or of a dried solution and said mixture in dry solid form having been treated with solution comprising water and a minor amount of a wetting agent selected from anionic and cationic surfactants and then dried.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 15)
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13. A pharmaceutical composition in solid form comprising a mixture of at least about 0.1% to about 90% by weight of griseofulvin;
- from about 5% to about 95% by weight of a polymer selected from polyvinylpyrrolidone, hydroxypropyl methyl cellulose, hydroxypropyl cellulose, methyl cellulose, block copolymers of ethylene oxide and propylene oxide, and polyethylene glycol; and
from about 0.025% to about 2.0% by weight of a wetting agent selected from anionic surfactants which was added to the drug-polymer mixture in dry solid form by a wet treatment from a solution comprising water;
wherein said drug polymer mixture is the product of a melt mix or of a dried solution and said composition was dried following the wet treatment. - View Dependent Claims (14, 21)
- from about 5% to about 95% by weight of a polymer selected from polyvinylpyrrolidone, hydroxypropyl methyl cellulose, hydroxypropyl cellulose, methyl cellulose, block copolymers of ethylene oxide and propylene oxide, and polyethylene glycol; and
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16. A method of preparing a pharmaceutical composition with increased bioavailability in mammals from a poorly water soluble or water insoluble drug, which comprises:
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(a) forming a solution of the drug with a pharmacologically acceptable, water soluble polymer; (b) drying the drug-polymer solution; (c) treating the dried drug-polymer solution with a wetting sufficient amount of a solution comprising water and a wetting agent selected from anionic and cationic surfactants; and (d) drying the mixture of step (c). - View Dependent Claims (17, 18, 19, 20, 22, 23)
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Specification