Nifedipine extended-release tablets (Ⅱ) specifically can lower blood pressure how much each patient is different, and can not be generalized. Nifedipine extended-release tablets (Ⅱ) is suitable for patients with high blood pressure and angina pectoris, the drug is mainly through the inhibition of calcium ions to the intracellular flow, causing myocardial contractility reduction and vasodilatation, so as to achieve the purpose of lowering blood pressure. How much the specific blood pressure can be lowered is based on the dosage used by the patient as well as the effect of the drug to decide, different patients have different sensitivity to the drug, the effect produced by the drug will also be different. There is no definite range of values for how much the blood pressure can be lowered. The drug may cause adverse reactions such as swelling of the ankles, feet and lower legs, chest pain, blurred vision, and panic attacks when the symptoms are severe, and prompt medical attention should be sought. It is contraindicated in people who are allergic to the drug, in patients who have experienced cardiogenic shock, in people with severe aortic (valvular) stenosis, in patients with unstable angina, in people who have recently suffered a myocardial infarction, in patients taking rifampicin and in pregnant women. It is recommended to seek medical advice if you have elevated blood pressure or poor blood pressure control. If you need to use medication, please follow the doctor’s instructions, do not self-medicate.