发明名称 |
Sustained release preparations |
摘要 |
pH-independent sustained release preparations capable of releasing a drug independently from the pH value in the gastric tract. These sustained release preparations are characterized in that a drug-containing core is coated with 1) a first layer made of a water-insoluble polymer, and 2) a second layer made of an enteric polymer and a water-soluble polymer. |
申请公布号 |
AU4686101(A) |
申请公布日期 |
2001.10.23 |
申请号 |
AU20010046861 |
申请日期 |
2001.04.09 |
申请人 |
SUMITOMO PHARMACEUTICALS CO. LTD. |
发明人 |
HIROYUKI NISHII;HIROHISA KOBAYASHI;KAZUYA OTODA |
分类号 |
A61K9/28;A61K9/36;A61K9/50 |
主分类号 |
A61K9/28 |
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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