Abstract: It is intended to provide pergolide-containing transdermal preparations having reducreduced side effects and exerting sufficient therapeutic effects. Namely, a pergolide-containing transdermal preparation which is capable of achieving a plasma AUC ratio of pergolide or the like to at least one pergolide metabolite of 1:0.5 to 1:5; and/or transdermal preparation containing pergolide and/or a pharmaceutically acceptable salt thereof which is capable of achieving a ratio (A/B) of the maximum plasma level (A) of pergolide and/or a pharmaceutically acceptable salt thereof to the plasma level (B) thereof in the next administration of less than 2.

Abstract: A patch comprising a backing layer and an adhesive layer disposed on the backing layer and compounded with an adhesive base agent and pergolide and/or a pharmaceutically acceptable salt thereof, wherein the adhesive base agent comprises an acrylic polymer including no substantial carboxyl group and hydroxyl group and having self-adhesion properties and a rubber polymer, and the weight ratio of the content of the acrylic polymer to the content of the rubber polymer is from 1:1 to 1:9.

Abstract: A patch comprising a backing layer and an adhesive layer disposed on the backing layer and compounded with a drug and an adhesive base agent, wherein the adhesive base agent comprises styrene-isoprene-styrene block copolymer, 2-ethylhexyl acrylate—vinyl acetate copolymer and a basic nitrogen-including polymer including a basic nitrogen and having no adhesion property at normal temperature.

Abstract: A patch for transdermal administration having a sufficiently high transdermal permeation property of a COX-2 inhibitor to exert a superior antiinflammatory effect, the patch for transdermal administration comprising a backing and an adhesive layer which is placed on at least one side of the backing and comprises an adhesive base agent and a drug, wherein the drug is valdecoxib or a pharmaceutically acceptable salt thereof.

Abstract: Percutaneous absorption preparations for treating dementia which contain an adhesive composition, characterized in that the adhesive composition contains the active ingredient in a dispersed state, the active ingredient is released at a pharmacologically effective rate and the skin permeation rate thereof is at least 1.2 &mgr;g/cm2/h. Thus, it is possible to provide percutaneous absorption preparations whereby the therapeutic effect can be sustained over a prolonged period of time without elevating the concentration of the active ingredient in the plasma to such a level as causing the expression of side effects in the administration of remedies for dementia.

Abstract: It is intended to provide external preparations for percutaneous application and compositions therefor whereby a hardly soluble drug such as a drug having an ergoline skeleton can be effectively absorbed via the skin into the blood under circulation while avoiding side effects on the digestive system observed in case of oral administration or side effects on the central system caused by a rapid increase in the concentration in the blood and a high adhesiveness to the skin can be established. This object can be established by composition characterized by containing a copolymer having N-vinyl-2-pyrrolidone as one of its constituents and percutaneous absorption preparations characterized by having a drug-containing adhesive layer containing such a composition and a support layer.

Abstract: A patch agent of the present invention comprises a support, and an adhesive layer laid on the support and containing an adhesive base and a drug, wherein the adhesive base contains an acrylic polymer substantially having no carboxyl and no hydroxyl in molecules thereof, and a rubber-based polymer, so as to achieve sufficiently high skin permeability of the drug and preparation properties. Accordingly, the present invention enables administration of the drug through skin to be implemented with drug administration effect at a sufficiently high level and on a stable basis.

Abstract: An adhesive pharmaceutical preparation of the percutaneous absorption type containing an acid addition salt of a basic drug or amphoteric drug, in which the medicinal component highly permeates the skin and which is reduced in skin irritation and excellent in physical stability. The preparation comprises an aminated polymer, a drug in the form of an acid addition salt, and a carboxylic acid or/and a salt thereof, and is characterized in that the content of the aminated polymer is up to 50 wt. % based on the whole preparation, the amount of the amino groups contained in the polymer is 0.5 mol or higher per mol of the drug, and the amount of the carboxylic acid or/and salt thereof is 1 to 10 mol per mol of the sum of the drug and the amino groups contained in the polymer.

Abstract: A tape formulation for percutaneous administration containing fentanyl which comprises fentanyl or a salt thereof, a pressure sensitive adhesive and sodium acetate, is disclosed. The salt of fentanyl is preferably fentanyl citrate. The tape formulation of the present invention is little irritation to the skin and excellent in the percutaneous permeation of fentanyl and has a high stability even after the passage of time.

Abstract: A matrix type patch formulation which comprises an adhesive layer containing a physiological active substance, an organic acid, a hydrophobic high molecular material, a tackifying resin, a plasticizer and an absorption enhancer, is disclosed. The adhesive layer preferably contains 0.1 to 20% (w/w) of the physiological active substance, 0.01 to 15% (w/w) of the organic acid, 15 to 60% (w/w) of the hydrophobic high molecular material, 10 to 70% (w/w) of the tackifying resin, 10 to 60% (w/w) of the plasticizer and 0.01 to 20% (w/w) of the absorption enhancer. The organic acid is preferably an aliphatic carboxylic acid, an aromatic carboxylic acid, an alkyl sulfonic acid, an alkyl sulfonic acid derivative, cholic acid derivative or a water-soluble inorganic salt thereof. The matrix type patch formulation of the present invention can increase the percutaneous absorbability of the physiological active substance and is extremely reduced in skin irritation.