Desmopressin for the treatment of enuresis eat 3 to 6 months can stop, antidiuretic hormone absolute secretion of patients, the need for long-term oral. Desmopressin mainly plays the role of antidiuretic hormone, can reduce the excretion of water in the body, maintain blood volume, clinically can be used for the treatment of enuresis, central enuresis. Desmopressin can be taken orally for 3 to 6 months for the treatment of enuresis, and the drug can be gradually stopped after the condition improves to avoid serious adverse reactions. Some patients may have a lack of antidiuretics in the body and need to be supplemented with exogenous antidiuretic hormone to maintain water balance in the body, and such patients need to take desmopressin orally for a long period of time. Adverse effects of desmopressin include nausea, vomiting, weight gain, decreased blood sodium, headache, abdominal pain, etc. It is contraindicated in patients with allergy to the drug components, unstable angina pectoris, and psychogenic irritability. Taking desmopressin should be used in accordance with the doctor’s instructions, mastering the duration and course of treatment with the drug.