Why is Captopril in Changzhou expensive?

Captopril tablets are used to treat hypertension and heart failure, and belong to angiotensin converting enzyme inhibitors. It has been listed for decades, and it has passed the patent protection period, so it is expensive and there are many products from manufacturers. The specifications and purity of drugs are different, and the clinical effects are different, and the curative effects are not exactly the same. The effect of high purity is relatively stable.