摘要:
The invention concerns a patch for the controlled release of readily available volatile active substances to the skin, the patch comprising a back layer and, bonded to it, a water-insoluble adhesive film consisting of a pressure-sensitive fusion adhesive, plus a detachable film covering the adhesive film. The patch is characterized in that the pressure-sensitive fusion adhesive contains a triple-block copolymer of polystyrene block copoly(ethylene/butylene) block polystyrene (SEBS) at a concentration of 10 to 80% by wt., and an active substance which, at the temperature at which the adhesive bonds, is a readily volatile liquid, and which is present at a concentration of 2.5 to 25% by wt.
摘要:
A method of preparing a patch for the controlled release of readily available volatile active substances to the skin is disclosed. The patch comprises a back layer, and, bonded to the back layer, a water-insoluble adhesive film consisting of a pressure-sensitive fusion adhesive, plus a detachable film covering the adhesive film. The pressure-sensitive fusion adhesive contains a triple-block copolymer of polystyrene block copoly(ethylene/butylene) block polystyrene at a concentration of 10 to 80% by wt., and an active substance at a concentration of 2.5 to 25% by weight, which is a readily volatile liquid at the temperature at which the adhesive bonds.
摘要:
An improved Transdermal Delivery System (TDS) comprising a backing layer inert to the components of the matrix, a self-adhesive matrix containing rotigotine and a protective foil or sheet to be removed prior to use, characterized in that the self-adhesive matrix consists of a solid or semi-solid semi-permeable polymer (1) wherein rotigotine in its free base form has been incorporated, (2) which is saturated with rotigotine and contains said rotigotine as a multitude of microreservoirs within the matrix, (3) which is highly permeable for the free base of rotigotine, (4) which is impermeable for the protonated form of rotigotine, (5) wherein the maximum diameter of the microreservoirs is less than the thickness of the matrix. is provided. Said TDS provides for enhanced flux of rotigotine across the TDS/skin interface.
摘要:
This invention provides a device containing a compound of formula (I), wherein R represents a saturated or unsaturated C2-7 aliphatic acyl group optionally substituted by one or more halogen atoms, a hydroxy group, a C1-6 alkoxy group, a carboxyl group, a C2-7 alkoxycarbonyl group, a 5 to 7-membered cycloalkyl group, a phenyl or naphthyl group; a C2-6 hydroxyalkyl group; an aliphatic acyloxyalkyl group having a C2-7 acyl group and a C1-6 alkyl group; a C1-6 alkyl group substituted by a C1-6 alkoxy group, a carboxyl group, a C2-7 alkoxycarbonyl group, a C2-7 alkoxycarbonyl group substituted by a phenyl or naphthyl group, a carbamoyl group, a mono- or di-(C1-6 alkyl)-substituted carbamoyl group or a cyano group; a benzoyl or naphthoyl group optionally substituted by one or more halogen atoms; a furoyl group or a pyridylcarbonyl group; and R1 represents a C1-6 alkyl group optionally substituted by one or more halogen atoms, a phenyl or a naphthyl group; the carbon atom marked “*” represents a carbon atom in (R)-configuration, (S)-configuration or a mixture thereof. The TTS is efficient in the treatment of urinary tract disorders, such as benign prostatic hypertrophy.
摘要:
The pharmaceutical use of nitroglycerin, which is also designated as glycerol trinitrate or, chemically, as 1,2,3-propanetriol trinitrate, in a transdermal application form prevents undesired labour in pregnant mammals. The pharmaceutical use prevents premature labour.
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:
The present invention relates to a novel polymorphic form of Rotigotine characterized by at least one of the following X-ray powder diffraction peaks: 12.04, 13.68, 17.72 and 19.01±0.2 (°2θ), measured with a Cu—Kαirradiation (1.54060), and a process for production thereof, which is useful for the manufacture of a stable medicament for treating or alleviating symptoms of Parkinson's Disease and other dopamine-related disorders.
摘要:
By using a composition comprising rotigotine and at least one chloride salt in a concentration of 1 to 140 mmol/l, the composition having a pH of 4 to 6.5 in a iontophoretic device for the treatment of Parkinson's disease, it became possible to obtain a rotigotine flux across the human stratum corneum which was higher than the one previously obtained with conventional passive diffusion systems.
摘要:
The present invention relates to a novel polymorphic form of rotigotine characterized by at least one of the following powder X-ray diffraction peaks: 12.04, 13.68, 17.72 and 19.01±0.2 (° 2θ), measured with a Cu—Kα irradiation (1.54060 Å), and a process for production thereof, which is useful for the manufacture of a stable medicament for treating or alleviating symptoms of Parkinson's disease and other dopamine-related disorders.
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.