Usually enalapril maleate tablets can be taken for a long time, but it should be used under the guidance of the doctor, don’t use the medicine privately and blindly, so as not to delay their own condition and increase the burden on the body. Enalapril maleate tablets belong to antihypertensive drugs, applicable to all stages of essential hypertension, renal vascular hypertension, heart failure at all levels, can prevent symptomatic heart failure, left ventricular insufficiency, coronary ischemic events. It should be noted that since enalapril maleate is a chemically synthesized drug with a variety of side effects, if it is taken for too long patients can experience dizziness, headache, drowsiness, dry mouth, epigastric discomfort, nausea, palpitations (rapid heartbeat, often accompanied by panic attacks), tightness in the chest, coughing, redness of the face, skin rashes and proteinuria. When symptoms are severe, the drug needs to be reduced. In case of leukopenia, the drug needs to be discontinued. It should be noted that this drug is contraindicated in people who are allergic to the product or in patients with bilateral renal artery stenosis. Use this drug with caution in people with severely impaired renal function.