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PHARMACEUTICAL CONTROLLED RELEASE BEADS COMPRISING FUROSEMIDE AND A FORMULATION CONTAINING SAID CONTROLLED RELEASE BEADS
PHARMACEUTICAL CONTROLLED RELEASE BEADS COMPRISING FUROSEMIDE AND A FORMULATION CONTAINING SAID CONTROLLED RELEASE BEADS
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机译:包含呋喃酮化物和包含所述受控受控释放珠的配方的药物受控释放珠
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摘要
The present invention relates to controlled release beads comprising a core of an insoluble or soluble inert material provided with a layer of furosemide dispersed in a hydrophilic polymer and a specific outer membrane for controlled release of the furosemide whereby the membrane comprises 1) a film former selected from ethyl cellulose and copolymerisates of acrylic and methacrylic acid esters and 2) at least one hydrophilic polymer selected from polyvinylpyrrolidone, hydroxypropyl cellulose and polyalkylene glycols; in that the amount of the outer membrane is between 35 and 65 % (w/w) based on the dry layered core; and in that the release profile of furosemide is not more than 30 % after 60 minutes, not more than 44 % after 120 minutes and more than 80 % after 360 minutes. The present invention also refers to a process for the preparation of said controlled release beads, a pharmaceutical formulation comprising said beads and the use of said beads for treatment of cardiovascular diseases such as hypertension, congestive heart failure and oedema.
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