Levamlodipine is a calcium antagonist for all grades of hypertension, both primary and secondary. Hypertension is a clinical syndrome characterized by increased blood pressure in the arteries of the body circulation, accompanied by the function of the heart, brain, kidneys and other organs. Levamlodipine principle is a dihydropyridine calcium channel blocker. It acts on the smooth muscle of peripheral arteries and blood vessels, dilates the diameter of blood vessels, reduces peripheral vascular resistance and lowers blood pressure. The drug has less common side effects, including headache, flushing, palpitations and dizziness. It also has very rare side effects, including itching, rash, and dyspnea. Use with caution in people with impaired liver function. Pregnant and lactating women need to use it under the supervision of a physician. If the drug is required for high blood pressure, use it under the supervision of a physician to avoid delays.