The effect of tretinoin polypeptide tablets in lowering urinary protein is more moderate and the effect is OK. In the clinic, whenever there is urine protein, it suggests that the filtration membrane of the kidney is damaged and protein will be lost from here. The main purpose of treatment is to repair the kidney’s filtration membrane and prevent further loss of protein. The reason why the kidney’s filtration membrane is damaged is due to aseptic inflammation, such as chronic nephritis, diabetic nephropathy and so on. For this type of inflammation, the application of antibiotics has no therapeutic effect, and can only be applied to immunosuppressant or hormone therapy, and tretinoin tablets are a kind of immunosuppressant, which can inhibit the body’s overpowering immunity, to achieve the purpose of protecting the renal filtration membrane. Compared with the immunosuppressants like cyclophosphamide and tacrolimus, the effect of tretinoin tablets is more moderate, if the application of this drug is not effective, you can consider cyclophosphamide and tacrolimus.