Ethylcellulose is one of the most widely used water-insoluble polymers for the coating of solid dosage forms.The characteristics of ethylcellulose(EC) are introduced.

• 乙基纤维素(EC)是广泛用于固体制剂包衣的水不溶性纤维素衍生物,可作为缓控释制剂应用于缓控释薄膜包衣领域。