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Compositions and methods for buccal delivery of pharmaceutical agents

Image Number 6 for United States Patent #5849322.

A composition for transmucosally administering a drug to the oral cavity comprises an adhesive layer comprising a hydrophilic polymer having one surface adapted to contact a first tissue of the oral cavity and adhere thereto when wet and an opposing surface in contact with and adhering to an adjacent drug-containing layer comprising an effective amount of a drug and optionally an effective amount of a permeation enhancer, wherein the drug-containing layer is adapted to contact and be in drug transfer relationship with a mucosal tissue of the oral cavity when the adhesive layer contacts and adheres to the first tissue. Preferred drugs include peptides, such as glucagon-like insulinotropic peptides. A method of transmucosally administering a drug to the oral cavity is also disclosed.

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