Timosartan tablets are renin-angiotensin-aldosterone receptor antagonists , which are generally used for proteinuria reduction therapy. Proteinuria is the patient’s urine protein content of more than 150mg/24 hours, protein qualitative test was positive reaction of urine. The first thing you need to do is to identify the cause of the urine protein, improve the renal ultrasound, antinuclear antibody 17, vasculitis antibody, renal puncture biopsy, etc., to clarify the cause of urine protein, targeted treatment for different causes. At present, in addition to physiological proteinuria without special treatment, other causes of proteinuria such as primary glomerulonephritis, diabetic nephropathy, hypertensive nephropathy, etc., can be used renin-angiotensin-aldosterone receptor antagonist such as timosartan and other drugs to reduce urinary protein treatment. However, it is forbidden for patients who are allergic to this product, patients in the middle and end stages of pregnancy and lactation, patients with biliary tract obstructive diseases, and patients with severe hepatic and renal insufficiency. It is recommended that patients go to regular hospitals for consultation and examination, choose the appropriate treatment according to the results of the examination, and do not use medication privately, so as not to cause adverse effects.