Diltiazem is used in the treatment of hypertension and coronary heart disease, long-term medication is required, when the condition is effectively controlled before considering stopping the drug, generally need to use the drug for about 1~3 months. Diltiazem belongs to the calcium antagonist, has the effect of diastolic peripheral blood vessels and coronary arteries, clinically mainly used for hypertension, coronary heart disease and hypertrophic cardiomyopathy treatment. This product needs to be taken consistently for a long time, generally need to use the drug for 1~3 months, and need to regularly assess the condition, after the condition is stabilized can consider stopping the drug. As each person’s condition is different, the course of medication varies from person to person. Adverse reactions that often occur with the use of this product are headache, nausea, swelling, dizziness, rash, weakness, etc. It is contraindicated for those who are allergic to this product, those who have acute myocardial infarction or pulmonary congestion, and those who have sick sinus node syndrome without a pacemaker. Please follow the doctor’s instructions to adhere to the medication, do not stop the drug, so as not to cause recurrence of the disease.