药物的导向定位是近代药剂学的主攻方向之一。药物经过物理化学方法处理后,制成某种剂型,给药之后,在体内能明显地集中在预定的靶组织,这种手段称为药物的导向定位化。所制成的剂型称为导向定位制剂。药物导向定位的意义在于增强药物对靶组织 The orientation of drugs is one of the main directions of modern pharmacy. After the drug is treated by physical and chemical methods, it is made into a certain dosage form, and after administration, it can be clearly concentrated in the target tissue in the body. This method is called drug-oriented positioning. The prepared dosage form is called a guided positioning formulation. The significance of drug-guided positioning is to enhance drug-targeting