An adhesive matrix and adhesive formulation are described. The adhesive matrix is comprised of a hydrophilic domain and a hydrophobic domain, and a therapeutically active agent contained in the matrix in a supersaturated, stable, condition. The hydrophilic domain and the hydrophobic domain are co-soluble in a solvent system, to provide a homogeneous blend in which the active agent is solubilized. The proportion of the hydrophilic domain and hydrophobic domain is selected to optimize, or maximize, solubility of active agent in the matrix.

The present invention relates to a mucoadhesive layer, preferably mucoadhesive buccal layer, comprising a non-nanoparticulate macrolide. Furthermore, the present invention relates to a mucoadhesive film, preferably mucoadhesive buccal film, comprising a mucoadhesive layer comprising a non-nanoparticulate macrolide, and further comprising a backing layer. The present invention also relates to a mucoadhesive film, preferably mucoadhesive buccal film, comprising a mucoadhesive layer, a backing layer, and an intermediate layer. The present invention further relates to a mucoadhesive layer or mucoadhesive film for use as a medicament and for use in preventing and/or treating transplant rejection. Moreover, the present invention relates to a method of preparing a mucoadhesive film.

Transdermal drug delivery systems and methods of fabricating such systems are provided. The active pharmaceutical ingredient can be lenalidomide or other immunomodulatory agents. More particularly, the present invention is directed to improving the solubility of lenalidomide and other immunomodulatory imide compounds and improving the permeation of such compounds through the skin.

A pressure-sensitive adhesive matrix and a patch are disclosed. The pressure-sensitive adhesive matrix includes the following components: in parts by mass, 60-85 parts of an acrylate pressure-sensitive adhesive, 1-20 parts of a polyol, and 5-30 parts of a plasticizer. The pressure-sensitive adhesive matrix has a micro-phase separation structure, and fine polyol droplets are uniformly dispersed in a homogeneous phase structure compounded by the acrylate pressure-sensitive adhesive and plasticizer. The pressure-sensitive adhesive matrix exhibits water absorbability and moisture retention ability, so that the adhesion between the matrix and skin is not adversely influenced by TEWL. The adhesion of the matrix is gradually improved after absorbing water, therefore the adhesion time is increased.

A patch preparation which can produce the effect for preventing any problems due to the misuse of the patch preparation, includes a support and a plaster wherein the plaster includes a) an aliphatic compound with hydrophilic group which is in solid state at room temperature, b) a non-aqueous adhesive, and c) a solvent with a vapor pressure of 1 kPa or more at 20° C.

A transdermal absorption-type patch (10) includes: a support material (1) and an adhesive layer (2) laminated on the support material (1). The adhesive layer (2) includes: a solid composite material (2a), the solid composite material (2a) being an active ingredient with a molecular weight of 800 or greater enclosed by a surfactant; an oil phase; and an adhesive agent, the adhesive agent containing an acrylic elastomer. The content of the acrylic elastomer is 30% to 70% by mass based on the total mass of the acrylic elastomer and the oil phase. The composite material (2a) forms a solid-in-oil type particle dispersed in the oil phase.

The present invention aims to provide an aqueous adhesive which has both good moldability and strong adhesive force to the skin, and provides good feeling when used. The present invention can provide an adhesive with good shape retention performance by formulating two or more aqueous macromolecules, polyhydric alcohols, aqueous and insoluble cross-linking agents.

A ropinirole-containing patch comprising an adhesive agent layer and a backing layer, wherein the adhesive agent layer containing: at least one selected from the group consisting of ropinirole and a pharmaceutically acceptable salt thereof; a fatty acid metal salt having 7 or more carbon atoms; and an adhesive agent.

Provided herein are compositions, delivery devices, and methods relating to the delivery of tetrabenazine and/or deuterated tetrabenazine, for example, continuous or substantially continuous delivery such as transdermal delivery, for the treatment of a hyperkinetic movement disorder. Also provided are transdermal delivery devices comprising tetrabenazine, a deuterated tetrabenazine, or a combination thereof, pharmaceutical compositions comprising tetrabenazine and/or a deuterated tetrabenazine, methods of preparing the same, and methods of using the same for example, for the treatment of a hyperkinetic movement disorder.

The invention relates to a medical product for a fastening duration of at least 7 days having good skin compatibility. The medical product includes a central adhesive compartment (3) and an over-patch. The over-patch is free of active ingredients and is formed from a water-vapor-permeable back layer (1) and an adhesive polymer layer (2) that is free of active ingredients. The invention further relates to a method for the production of the foregoing medical product, and to kits of parts containing laminates of layers 1 and 2.