Abstract: A mucoadhesive carried suitable for a therapeutic agent is disclosed. This carrier allows controlled release of the therapeutic agent via mucosal tissue. The mucoadhesive carrier comprises a Monolithic polymer matrix that is anhydrous but hydratable, and amorphous fumed silica. The silica enhances the mucoadhesive properties of the carrier. An optional water-insoluble barrier film or layer can be secured to the polymer matrix to provide a non-adhering face.

Abstract: A trilaminate film suitable for prolonged and sustained delivery of an active ingredient in a buccal cavity is disclosed. A hydratable mucoadhesive base layer, a non-adhesive reservoir layer and a water-impermeable carrier film sandwiched between and bonded to the base layer and the reservoir layer are the elements which form the trilaminate film.

Abstract: The present invention provides a trans-dermal delivery pad for nitroglycerin administration, specifically a microsealed, trans-dermal nitroglycerin pad having a backing which is impervious to nitroglycerin absorption and transport and a silicon matrix affixed thereto, said silicone polymer matrix being of cross-linked silicone rubber having from about 10 to 200 micron microsealed compartments being formed by in situ cross-linking of the silicone rubber after it is mixed with a hydrophilic solvent system containing the nitroglycerin and a hydrophobic solvent which enhances nitroglycerin dispersion and transport.

Abstract: A stable solid dosage form of the compound .+-.methyl(7-[3(.alpha.)-hydroxy-2-.beta.-(4(RS)-4-hydroxy-4-methyl-trans- 1-octen-1-yl)-oxycyclopent-1.alpha.-yl]heptanoate, said solid dosage form comprising from about 50 to about 500 parts of a polymer selected from the group consisting of hydroxypropylmethyl cellulose and polyvinylpyrolidone per part of said compound.