It is very important that your doctor check your progress at regular visits to make sure this medicine is working properly. Urine tests may be needed to check for unwanted effects .
This medicine lowers the amount of sodium in your blood. Check with your doctor right away if you have confusion, nausea, vomiting, muscle cramps or spasms, or unusual tiredness or weakness .
Check with your doctor right away and stop using this medicine if you have fever, severe vomiting or diarrhea, or other conditions that may make you thirsty (such as during hot weather or having a strenuous exercise). This medicine may cause fluid or electrolyte imbalance which can lead to seizures and other serious conditions .
Do not take other medicines unless they have been discussed with your doctor, especially medicines that can make your mouth dry. This includes prescription or nonprescription (over-the-counter [OTC]) medicines and herbal or vitamin supplements .
Desmopressin may cause a serious type of allergic reaction called anaphylaxis. Anaphylaxis can be life-threatening and requires immediate medical attention. Tell your doctor right away if you have a rash; itching; swelling of the face, tongue, and throat; trouble breathing; or chest pain after you use this medicine .