Biopharmaceutics classification system(BCS) is a scientific frame based on the solubility and permeability of drugs.Currently,FDA,WHO and EMEA have accepted the concept of BCS.

• 生物药剂分类系统是根据药物的溶解性和渗透性对药物进行分类的一种科学框架,目前FDA、WHO和EMEA都接受了这种分类概念。