Agent improving proton-driven transporter-mediated...

A - Human Necessities – 61 – K

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Details

A61K 45/08 (2006.01) A61K 38/02 (2006.01) A61K 47/32 (2006.01) A61P 31/04 (2006.01) A61P 31/12 (2006.01) A61P 35/00 (2006.01) A61P 43/00 (2006.01)

Patent

CA 2508932

The present invention provides a pharmaceutical preparation that can improve absorption of a pharmaceutical compound in the gastrointestinal tract and that provides, through oral administration or like method, a blood concentration from which sufficient remedial effects can be expected, and a method for producing such a preparation. The invention is directed to a pharmaceutical preparation exhibiting excellent gastrointestinal absorbability comprising a compound recognized by a proton-coupled transporter and a pH-sensitive polymer in an amount sufficient for the gastrointestinal tract to acquire a pH at which the proton-coupled transporter optimally absorbs the compound into a cell.

L'invention concerne l'obtention d'une préparation médicinale qui améliore l'absorption d'un composé médicinal dans le tube digestif afin de parvenir à une concentration telle dans le sang qu'il est possible d'obtenir un effet thérapeutique suffisant par administration orale ou similaire, ainsi qu'un procédé de production associé. Elle se rapporte aussi à une préparation présentant une excellente capacité d'absorption dans le tube digestif et contenant un composé qui est reconnu par un transporteur à conduction de proton et un polymère sensible au pH, ce polymère sensible au pH étant contenu dans une quantité suffisante pour contrôler la valeur pH dans le tube digestif à un niveau optimal pour l'assimilation du composé dans les cellules par le transporteur à conduction de proton, etc.

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