Amlodipine benzenesulfonate tablets usually come in a box of 28 tablets and cost around$25. Amlodipine benzenesulfonate tablets are dihydropyridine calcium antagonists, which can selectively inhibit the transmembrane entry of calcium ions into smooth muscle cells and cardiomyocytes. The drug is a peripheral arterial dilator, directly acting on the vascular smooth muscle, reducing peripheral vascular resistance, thus reducing blood pressure, suitable for the treatment of hypertension, can be applied alone or in combination with other anti-hypertensive drugs, also used for the symptomatic treatment of chronic stable angina pectoris, but also for the diagnosis or suspected vasospastic angina pectoris treatment as well as prevention. Amlodipine is well tolerated and has relatively few side effects. Some people may experience adverse reactions such as facial flushing, generalized fatigue, and edema.