Amlodipine benzenesulfonate tablets are effective about 6~12 hours after taking. Amlodipine benzenesulfonate tablets belong to the common antihypertensive drugs, mainly used for hypertension, chronic stable angina pectoris, variant angina pectoris, coronary angiography confirmed coronary heart disease and other diseases treatment; the drug can be rapidly absorbed after oral intake, usually about 6~12 hours to reach the peak of blood concentration, so as to play the efficacy of the drug. The use of the drug may appear in the process of edema, dizziness, flushing, fatigue, nausea, abdominal pain, drowsiness and other discomforts, for amlodipine and the drug components of the allergy is prohibited; in the process of using the drug need to pay attention to low blood pressure, angina aggravation, myocardial infarction, liver function is impaired, so we need to pay attention to the monitoring of blood pressure and regular recheck of liver function, and for pregnant women, lactating mothers and other special groups, need to be guided by a doctor. The medication should be used under the guidance of a doctor for special groups such as pregnant women and nursing mothers. All of the above medications should be used under the guidance of a doctor, avoid self-medication to avoid adverse consequences.