Cilnidipine and amlodipine are both antihypertensive drugs, can not simply judge which one is better, according to the actual situation to choose the right drug is the best. Cilnidipine is a calcium channel blocker, mainly used in the treatment of hypertension, dilate the smooth muscle of blood vessels, so as to play a role in lowering blood pressure. The use of Cilnidipine may cause side effects such as panic, red face, frequent urination, dizziness, headache, etc. If the side effects are serious and affect normal life, the drug can be discontinued or replaced by a doctor for treatment. It is contraindicated in allergy, liver insufficiency, pregnant women, high altitude work and driver groups. Amlodipine is a calcium antagonist, with antihypertensive and anti-anginal effects, mainly used in the treatment of hypertension, angina pectoris, coronary heart disease patients without heart failure, etc., but is contraindicated in patients with severe hypotension and severe aortic valve stenosis. Side effects of amlodipine include dizziness, flushing, lower extremity edema, fatigue, palpitations, abdominal pain, drowsiness, etc. Severe overdose will also have low blood pressure or tachycardia. It is contraindicated in patients with impaired liver and kidney function, pregnant women, and heart failure. Cilnidipine and amlodipine which is good for lowering blood pressure can not be generalized, the use of drugs need to be different from person to person, the doctor will be based on the specific symptoms of the disease to choose the appropriate drugs for treatment.