METHOD OF PREPARING SOLID DOSAGE FORMS COATED IN TWO LAYERS COMPRISING A WATER-INSOLUBLE POLYMER AND A WATER-SOLUBLE PORE FORMER

A method of preparing a coated solid dosage form is disclosed wherein a solid dosage form, such as a compressed tablet with active agent dispersed therein, is coated at least twice with a coating solution comprising a water-insoluble coating polymer and a water-soluble pore former, and cured after a...

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Bibliographische Detailangaben
1. Verfasser: NOACK, ROBERT, M
Format: Patent
Sprache:eng ; spa
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Zusammenfassung:A method of preparing a coated solid dosage form is disclosed wherein a solid dosage form, such as a compressed tablet with active agent dispersed therein, is coated at least twice with a coating solution comprising a water-insoluble coating polymer and a water-soluble pore former, and cured after at least the first coating step. The method of the present invention allows for the production of cured coated solid dosage forms using very short curing times. Coated solid dosage forms produced according to the present invention have been found to have long extended release characteristics. Se describe un metodo para preparar una forma de dosificacion solida revestida, en donde una forma de dosificacion solida, tal como una tableta comprimida con agente activo disperso en la misma, es revestida por lo menos dos veces con una disolucion de revestimiento que comprende un polimero de revestimiento insoluble en agua y un agente formador de poros soluble en agua, y es curada despues de por lo menos la primera etapa de revesetimiento; el metodo de la presente invencion permite la produccion de lo formas de dosificacion solidas revestidas curadas utilizando tiempos de curacion muy cortos; se ha descubierto que las formas de dosificacion solidas revestidas, producidas segun la presente invencion, tienen caracteristicas de liberacion prolongada.