Details for Patent: 4,814,168
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Summary for Patent: 4,814,168
Title: | Transdermal multipolymer drug delivery system |
Abstract: | A dermal compositon comprising a drug, a multi-polymer of vinyl acetate, polyethylene and optionally one or more monomers, a natural or synthetic rubber and a tackifying agent. The ratio of the multipolymer to the rubber is, respectively, about 1:1 to about 10:1 and more preferably 1:1 to 5:1 and more preferably 3:1. The dermal composition can optionally contain a crosslinking agent, tackifiers, penetration enhancers and other ingredients known for use in adhesives for the transdermal delivery of drugs. The dermal compositions can be produced by a variety of methods known in the preparation of drug containing adhesive preparations including the homogenous mixing of the multi-polymer, drug and optional crosslinking agent and additional ingredients in aqueous solution followed by removal of excess water. |
Inventor(s): | Sablotsky; Steven (Miami, FL), Questel; John M. (Cuyahoga Falls, OH), Leeson; Dorothy J. (North Canton, OH) |
Assignee: | Noven Pharmaceuticals, Inc. (Miami, FL) |
Application Number: | 07/164,482 |
Patent Claim Types: see list of patent claims | Composition; |
Drugs Protected by US Patent 4,814,168
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International Family Members for US Patent 4,814,168
Country | Patent Number | Estimated Expiration | Supplementary Protection Certificate | SPC Country | SPC Expiration |
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Argentina | 002355 | ⤷ Try a Trial | |||
Austria | 122240 | ⤷ Try a Trial | |||
Austria | 144704 | ⤷ Try a Trial | |||
>Country | >Patent Number | >Estimated Expiration | >Supplementary Protection Certificate | >SPC Country | >SPC Expiration |