Regarding the medication for prevention of uremia, it is necessary to analyze and judge the cause of uremia from the beginning. If the uremia occurs in renal failure secondary to chronic nephritis, the preventive drug is to use a sufficient amount of glucocorticoids and corresponding immunosuppressants as required. For example, tacrolimus, cyclosporine, mycophenolate mofetil, cyclophosphamide or azathioprine. If the disease causing uremia is a secondary factor, such as diabetes, hypertension, gout, hepatitis B, lupus, purpura. In this case, oral hypoglycemic drugs, insulin, corresponding antihypertensive drugs, such as Irbesartan, Cosuya, Valsartan, Captopril, Nifedipine, Betalucil, and corresponding anti-allergic drugs such as Loratadine, Paracetamol, and drugs for the treatment of lupus, Prednisone, Prednisone, Snapdragon, etc., are all preventive medications against UTIs.