PVC pharmaceutical packaging materials enjoy advantages such as easy molding and easy sealing with PTP aluminum foil, excellent oxygen and water vapor barrier properties and a robust bubble cap after molding. Providing good support and protection to contents, it is mainly used in packaging of foods and solid oral drugs (inner packaging for capsules, tablets and exterior packaging for injection drugs and oral liquids). PVC is very stable and reacts to only a very small number of chemical solvents and generally it does not react with solid materials, so food and drug safety can be guaranteed.