Amlodipine belongs to the calcium channel blocker (CCB) class of drugs, which acts as an antihypertensive agent mainly via blocking calcium channels on the vascular smooth muscle cells to dilate blood vessels.
Allisartan Isoproxil belongs to the ARB class of drugs, which can effectively exert antihypertensive effects.
The combination of dihydropyridine CCBs and ARBs exerts synergistic antihypertensive effects.