Method and device for the release of drugs to the skin
First Claim
1. A dermal composition comprising a mixture of 0.1 to 50 by dry weight of a drug, a pressure sensitive adhesive, a liquid solvent for one or more of the components of the composition and about 0.1 to about 10% by dry/weight of the total composition of clay to increase the adhesiveness of the composition.
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Abstract
A method of increasing the adhesiveness of a shaped pressure sensitive adhesive, comprising adding an adhesiveness and drug release increasing amount of a clay to said adhesive prior to casting of the adhesive.
A dermal composition comprising a drug, a pressure sensitive adhesive, an adhesiveness increasing amount of a clay and a solvent.
A dermal composition comprising a drug, a multipolymer of ethylene vinyl acetate, an acrylic polymer, a natural or synthetic rubber and a clay, along with optional ingredients known for use in transdermal drug delivery systems.
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Citations
30 Claims
- 1. A dermal composition comprising a mixture of 0.1 to 50 by dry weight of a drug, a pressure sensitive adhesive, a liquid solvent for one or more of the components of the composition and about 0.1 to about 10% by dry/weight of the total composition of clay to increase the adhesiveness of the composition.
- 12. A multi-phase dermal composition comprising a first phase comprising a pressure sensitive adhesive and in admixture therewith, one or more additional phases containing a polymer, 0.1 to 50% by dry weight of the composition of drugs, a solvent for one or more of the components of the composition and about 0.1 to about 10% by dry weight of the composition of clay.
- 27. A dermal composition comprising a pressure sensitive adhesive, 0.1 to 50% by dry weight of drug, and about 0.1 to 6% by dry weight of clay to increase the adhesiveness of the composition.
Specification