Baixintong, also known as nifedipine controlled-release tablets, belongs to the calcium ion blocker, the price is between 35-60 yuan, commonly used specifications are 7 tablets / box and 14 tablets / box of 30mg / tablets, each region of the drug offer is not the same, so the price is not fixed. Bayxin Tong is a drug for the treatment of essential hypertension, antihypertensive effect is relatively strong, but also can treat coronary heart disease, stable angina pectoris and exertional angina pectoris, clinical use needs to be in the professional cardiovascular and cerebral vascular department under the guidance of a doctor to use medication, can not be self-medication or increase or decrease the dosage. There are strict contraindications to the use of mild hypertension is not recommended to use baisintong, for hypertension control is not satisfactory, can be changed from nifedipine extended-release tablets to baisintong. Regular blood pressure testing is required when taking the drug, and should be used with caution for those with bradycardia, and is contraindicated for those with allergies to the drug, as well as for those with cardiac insufficiency.