发明名称 |
A METHOD FOR THE PRODUCTION OF BIOADHESIVE COMPACT MATRICES THAT CAN BE USED EITHER AS SUCH OR FOR THE PROLONGED RELEASE OF ACTIVE SUBSTANCES, AND COMPACT MATRICES THUS OBTAINED |
摘要 |
A method for the preparation of a bioadhesive compact matrix, which comprises the preparation of a uniform mixture of powders comprising one alkylcellulose or one hydroxy alkylcellulose and a non- water- soluble, water- swellable cross-linked polycarboxylic polymer; the preparation of compressed units starting from such powder mixture by direct compression and finally the heating of the compressed units thus obtained to a temperature in the range of 80 - 250°C for a time of 1-60 minutes; the powder mixture can also comprise at least one active substance and the compressed units thus obtained are characterized by a prolonged release, and have a release kinetics of the active substance substantially of zero order in an aqueous solution at pH 4-8. |
申请公布号 |
CA2735203(C) |
申请公布日期 |
2016.10.11 |
申请号 |
CA20092735203 |
申请日期 |
2009.09.10 |
申请人 |
UNIVERSITA DEGLI STUDI DI GENOVA |
发明人 |
CAVIGLIOLI, GABRIELE;PARODI, BRUNELLA;RUSSO, ELEONORA;CAFAGGI, SERGIO;BIGNARDI, GAETANO;CIRRINCIONE, PAOLA |
分类号 |
A61K9/20;A61K9/22;A61K31/55;A61K31/64 |
主分类号 |
A61K9/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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