Valsartan can be taken for a long time, to master the indications and contraindications, and patients with renal insufficiency should pay attention to strengthening the test. The main effect of valsartan is to antagonize the angiotensin II receptor, hypertension is the main indication, the scope of application is relatively wide, can be used in the treatment of most patients with hypertension, the safety of the drug is better, can be taken for a long time. After using the drug, there may be dizziness, headache, weakness and other adverse reactions, patients with severe renal failure and pregnant women need to avoid using this drug. However, for patients with renal insufficiency, it is necessary to pay attention to strengthening the monitoring of glomerular filtration rate and blood potassium in the process of taking the drug, if there is a decrease in the glomerular filtration rate and an increase in blood potassium, the dose should be reduced or discontinued in a timely manner. In the process of taking valsartan, you should follow up in the hospital regularly, and use and adjust the medication under the guidance of the physician.