Aquacoat® ECD 用于缓释释放的乙基纤维素水分散体和 Aquacoat® CPD 醋酸纤维素酞酸酯水分散体用于肠衣保护
Aquacoat® ECD 是乙基纤维素聚合物的水分散体。在缓释应用中，Aquacoat®ECD提供稳定、可重复、非pH值依赖的释放曲线。其主要释放机制是药物通过水不溶性衣膜的扩散。
使用时需要添加增塑剂，添加的类型和水平取决于衣膜的渗透性，也即药物释放曲线的需求。推荐增塑剂的用量为乙基纤维素固含量的20-25%。
Aquacoat® CPD 是醋酸纤维素酞酸酯水分散体。为片剂和胶囊提供肠衣保护。需要添加增塑剂，添加量约为24%。
- 在美国和欧洲可用做药用辅料
- 在美国为一般公认安全的食品添加剂
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