Shihuida is the trade name of levamlodipine benzenesulfonate tablets, levamlodipine benzenesulfonate tablets and levamlodipine benzenesulfonate tablets are both calcium channel blockers, and they are both used in the treatment of hypertension and angina pectoris. Both of them have the same pharmacological effects, indications and so on, there is no difference, only the name of the different manufacturers of drugs is different. Levamlodipine Benzenesulfonate Tablets and Levamlodipine Benzenesulfonate Tablets are calcium in-flow blockers (also known as calcium channel blockers or calcium antagonists), blocking the entry of extracellular calcium ions from cardiac muscle and vascular smooth muscle into the cells via the calcium ion channels (slow channels) of the cell membrane. Directly relaxes vascular smooth muscle and has antihypertensive effects. Less common adverse reactions after administration are headache, edema, fatigue, insomnia, nausea, abdominal pain, flushing of the face, palpitations (rapid heartbeat, often accompanied by panic) and dizziness. Very rare adverse reactions are pruritus, rash, dyspnea, weakness, muscle cramps, and dyspepsia. Contraindicated in patients with hypersensitivity to dihydropyridine calcium antagonists. Levamlodipine Benzenesulfonate Tablets and Levamlodipine Benzenesulfonate Tablets are prescription medications and it is recommended that they be taken as directed by a physician.