Transdermal patch containing isosorbide dinitrate and bisoprolol

摘要

This invention relates to a transdermal patch in the form of a layer complex, comprising a backing layer, a drug-reservoir layer comprising pharmacologically active ingredients and pharmaceutically acceptable adjuvants, and a release liner covering the drug-reservoir layer, characterized in that the drug-reservoir layer comprises isosorbide dinitrate and Bisoprolol at a ratio of 1:3 to 3:1 by weight, as the pharmacologically active ingredients. Animal tests show that said patch can reduce the elevation of T wave of cardiogram, the increase of the level of myocardial enzyme in blood serum, and the extension of the range of myocardial infarction caused by ligating the coronary artery in animals. Results show that said patch exhibits a considerable synergistic effect in the treatment of cardiovascular diseases and has good preventive and therapeutic effects on several adverse events on heart. In addition, the animal tests show that the patch according to the invention has a better pressure-reducing effect than the application of the patch containing only one of isosorbide dinitrate and Bisoprolol, and does not worsen the arrhythmia that is easily caused by the application of the patch containing only isosorbide dinitrate or Bisoprolol.