Abstract: The layered drug delivery devices of the present invention have an outer side and an inner side. The device includes, in order from the outer side to the inner side, a first layer and a second layer. The first layer wherein the first layer is water insoluble, water swellable, and water permeable. The second layer includes a therapeutic amount of a water soluble drug and a water soluble mucoadhesive film. The second layer is disposed such that water passing through said first layer solubilizes the drug. The said solubilized drug then can permeate through a mucosal membrane when the inner side is in contact with the mucosal membrane. The drug delivery device is in sheet form.

Abstract: The layered drug delivery devices of the present invention have an outer side and an inner side. The device includes, in order from the outer side to the inner side, a first layer and a second layer. The first layer wherein the first layer is water insoluble, water swellable, and water permeable. The second layer includes a therapeutic amount of a water soluble drug and a water soluble mucoadhesive film. The second layer is disposed such that water passing through said first layer solubilizes the drug. The said solubilized drug then can permeate through a mucosal membrane when the inner side is in contact with the mucosal membrane. The drug delivery device is in sheet form.

Abstract: A pharmaceutical composition for administration to a mammal is disclosed. The composition includes a therapeutically effective amount of a peptide, such as a GLP-1 molecule, a PTH molecule, or a GRF molecule. The composition further includes a buffer including a weak acid having an acid dissociation constant value of greater than about 1×10?5, such as acetic acid. The composition also includes an excipient for making the composition generally isotonic, such as D-mannitol.