Generic name of Xuanning is Levamlodipine Maleate Tablets, this antihypertensive drug is well absorbed by oral intake, the effect is usually seen within 6 hours, and the blood concentration can reach the peak in 6~12 hours. Levamlodipine maleate tablets can be used alone or with other anti-hypertensive drugs to treat hypertension. It can also be used alone or with other anti-angina drugs to treat variant angina and chronic stable angina. Levamlodipine maleate tablets are well absorbed after oral administration and are not affected by food intake. The blood concentration can reach the peak 6~12 hours after administration, and the blood concentration can reach the steady state after 7~8 days of continuous administration. Adverse reactions such as fatigue, edema, dizziness, abdominal pain are common with levamlodipine maleate tablets, less common are dry mouth, hypotension, insomnia, alopecia, frequent urination, etc. Rarely are skin rashes, erythema multiforme, etc., and very rarely are jaundice, hepatitis, and elevation of aminotransferases. It is contraindicated for those who are allergic to the ingredients contained in this product or dihydropyridines. Appearance of elevated blood pressure and other discomforts recommend timely consultation in the hospital, taking levamlodipine maleate tablets need to be under the guidance of a professional doctor.