Transdermal Therapeutic System
First Claim
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1. A transdermal therapeutic system, wherein such system is a matrix system with a cover layer that is impermeable to active substances;
- one or more active substance-containing self-adhesive matrix layers or one or more active substance-containing layers that have been coated with a pressure-sensitive adhesive; and
a removable protective layer, wherein the cover layer or the protective layer or both are made from at least one polymer and an embedded absorbing agent and channel-forming agent, or wherein the cover layer or the protective layer or both are a film that has been coated with a polymer support over the entire surface or in patterns, wherein the polymer support contains a mixture of at least one polymer, channel-forming agent, and absorbing agent.
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Abstract
This present invention concerns a cover layer that is impermeable to the active substances and/or a removable protective layer of a transdermal therapeutic system, comprising a thermoplastic film which either directly contains the absorbing agents and channel-forming agents or is coated with a polymer support (thermoplast) containing these substances. The polymer support can either be applied over the entire surface of the film or in patterns, directly during production. The thermoplastic film that is used and the polymer support can be made from either the same or different materials.
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31 Claims
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1. A transdermal therapeutic system, wherein such system is a matrix system with
a cover layer that is impermeable to active substances; -
one or more active substance-containing self-adhesive matrix layers or one or more active substance-containing layers that have been coated with a pressure-sensitive adhesive; and
a removable protective layer, wherein the cover layer or the protective layer or both are made from at least one polymer and an embedded absorbing agent and channel-forming agent, or wherein the cover layer or the protective layer or both are a film that has been coated with a polymer support over the entire surface or in patterns, wherein the polymer support contains a mixture of at least one polymer, channel-forming agent, and absorbing agent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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Specification