摘要:
The invention relates to a transdermal therapeutic system on the basis of polysiloxane which contains microreservoirs filled with an active substance and one ambiphilic solvent.
摘要:
The invention relates to a transdermal therapeutic system in the form of a patch for controlled release of estradiol in combination with noresthisteron acetate, comprising a backing layer, a reservoir attached thereto and oversaturated with active substances, which is produced using polyacrylate contact-sensitive adhesives and crystallization inhibitors, in addition to a removable protective layer. The inventive system is characterized in that the crystallization inhibitor is a polymer containing an amino group.
摘要:
The invention relates to a method for producing transdermal systems with free active agent bases. The invention is characterized in that, during the production of the system, the free active agent bases are released from active agent salts by reaction with a basic alkali metal salt.
摘要:
The invention relates to a transdermal therapeutic system comprising a back layer which is inert with respect to the constituents of the matrix, a self-adhesive matrix layer containing an effective quantity of (-)-5,6,7,8,-tetrahydro-6-[propyl[2-(2-thienyl)-ethyl]amino]-1-naphthol, and a protective film which is to be removed before use. The invention is characterized by a matrix based on a non-aqueous polymer adhesive system, said system being based on acrylate or silicon, with a solubility for (-)-5,6,7,8,-tetrahydro-6-[propyl[2-(2-thienyl)-ethyl]amino]-1-naphthol of ≥5 % g/g. Said matrix is essentially free of inorganic silicate particles.
摘要:
The invention relates to transdermal therapeutic systems for dispensing a pharmaceutical product, in particular a pharmaceutical product with a low tendency to spontaneously crystallize. The matrix layer or at least one of the matrix layers in said systems contains a silicone hot-melt adhesive, a pharmaceutical product, and particles made of crosslinked polyvinylpyrrolidone. The invention also relates to a method for producing said transdermal therapeutic systems.
摘要:
The invention relates to a transdermal or topical plasters that contain active ingredient, comprising a non-occlusive back layer, a matrix composed of one or more polymer layers having at least one pharmaceutical active ingredient in one or more of the layers, wherein the structure-forming base polymers of the layer(s) are non-occlusive or only slightly occlusive and a second polymer that has a low water-vapor permeability and that is immiscible or only very slightly miscible with the base polymer is dispersed in at least one of the polymer layers.
摘要:
The present invention relates to a method for stabilizing rotigotine, the method comprising providing a solid dispersion comprising polyvinylpyrrolidone and a non-crystalline form of rotigotine, wherein the weight ratio of rotigotine to polyvinylpyrrolidone is in a range from about 9:3.5 to about 9:6. The present invention also relates to a solid dispersion comprising a dispersing agent and a dispersed phase, said dispersed phase comprising rotigotine and polyvinylpyrrolidone, wherein the weight ratio of rotigotine to polyvinylpyrrolidone is in a range from about 9:3.5 to about 9:6, a pharmaceutical composition comprising such a solid dispersion, in particular a transdermal therapeutic system, as well as a method for the preparation thereof.
摘要:
This invention provides the use of a silicone-based transdermal therapeutic system having an area of 10 to 40 cm2 and containing 0.1 to 3.15 mg/cm2 of rotigotine as active ingredient, for the preparation of an anti-Parkinson medicament which induces a mean plasma concentration of rotigotine in the range of 0.4 to 2 ng/ml 24 h after administration.