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Transdermal patch
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== Components == The main components to a transdermal patch are: *[[Release liner]] β Protects the patch during storage. The liner is removed prior to use. *Drug β Drug solution in direct contact with release liner *Adhesive β Serves to adhere the components of the patch together along with adhering the patch to the skin *Membrane β Controls the release of the drug from the reservoir and multi-layer patches *Backing β Protects the patch from the outer environment *[[Penetration enhancer]] β These are permeation promoters for drugs, which increase delivery of drug. *Matrix filler β Provides bulk to the matrix, and some act as matrix stiffening agents. Other components include stabilizers (antioxidants), preservatives, etc.
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