Lundy is one of the trade names of amlodipine benzenesulfonate, amlodipine benzenesulfonate’s role is to dilate blood vessels to lower blood pressure, adverse reactions include lower extremity edema, flushing and so on. 1. Therapeutic effect: the main mechanism of amlodipine benzenesulfonate is to inhibit calcium ion in-flow, can make the arterial vasculature play the role of diastole, can reduce vascular resistance to lower blood pressure, clinically mainly used in the treatment of hypertension, and at the same time on the coronary artery has a dilating effect, can also be used in the treatment of coronary heart disease patients. 2. Adverse reactions: amlodipine benzenesulfonate adverse reactions include flushing, lower extremity edema, dry stools, tachycardia, etc. Some patients may also experience gingival hyperplasia, mainly in patients who have been taking the drug for a long time. Patients who are allergic to the components of the drug, severe hypotension are prohibited. The use of amlodipine benzenesulfonate needs to be carried out under the guidance of a professional physician, and should not be used without authorization.