Common amlodipine has amlodipine benzenesulfonate, levamlodipine maleate tablets and so on, their active ingredients are the same, the efficacy is also similar, there is no which one is the best. Amlodipine belongs to the calcium channel antagonist, has the effect of diastolic coronary artery and peripheral blood vessels, clinically used in hypertension, chronic stable angina and variant angina treatment. Regardless of the type of amlodipine single-agent preparation, however, its efficacy is similar, and there is no difference between good and bad. Common adverse reactions to amlodipine include flushing, fatigue, edema, headache, dizziness, nausea, panic, drowsiness, etc. It is contraindicated in those who are allergic to dihydropyridines. Please choose the appropriate medication according to your condition under the guidance of your physician, and do not blindly self-medicate.