Preparations for percutaneous absorption

A - Human Necessities – 61 – K

Patent

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A61K 9/70 (2006.01) A61K 47/06 (2006.01) A61K 47/12 (2006.01)

Patent

CA 2369012

Preparations for percutaneous absorption comprising a basic drug or its salt dissolved in a liquid component and having an enhanced percutaneous absorbability and a safety to the skin, i.e., the administration site. The preparations for percutaneous absorption, preferably patches, contain a basic drug or its salt, an organic acid or its salt and a liquid component having a solubility parameter of from 7 to 13 (cal/cm3)1/2 and have a very excellent skin permeability of the drug.

L'invention concerne des préparations destinées à être absorbées par voie percutanée, comprenant un médicament de base ou son sel dissous dans un composant liquide et présentant une absorbabilité percutanée accrue tout en étant sûres pour la peau, autrement dit le site d'administration. Ces préparations destinées à être absorbées par voie percutanée, se présentant de préférence sous forme de patchs, renferment un médicament de base ou son sel, un acide organique ou son sel, et un composant liquide ayant un paramètre de solubilité comprise entre 7 et 13 (cal/cm?3¿)?1/2¿, et se caractérisent par une excellente perméabilité du médicament à travers la peau.

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