Desmopressin can rarely cause a low level of sodium in the blood (hyponatremia), which can be serious or even fatal. Drinking too much liquid, using certain medications (such as "water pills"/diuretics including furosemide, glucocorticoids such as prednisone), being 65 years or older, or having certain medical conditions may increase the risk of low sodium in the blood. Lab tests (such as urine tests, sodium blood levels) must be done before you start using this medication and while you are using it. Keep all medical and lab appointments.
Tell your doctor right away if you develop symptoms of low sodium in the blood, such as nausea, vomiting, headache, muscle weakness/cramps, unusual tiredness, unusual drowsiness, dizziness, restlessness, mental/mood changes including confusion/irritability.
Desmopressin is used to control the amount of urine your kidneys make. Normally, the amount of urine you make is controlled by a certain substance in the body called vasopressin. In people who have "water diabetes" (diabetes insipidus) or certain kinds of head injury or brain surgery, the body does not make enough vasopressin. Desmopressin is a man-made form of vasopressin and is used to replace a low level of vasopressin. This medication helps to control increased thirst and too much urination due to these conditions, and helps prevent dehydration.Desmopressin products applied in the nose are no longer indicated to control nighttime bedwetting in children because of the increased risk of developing a serious side effect (a low level of sodium in the blood).
How to use desmopressin nasal
Read the Patient Information Leaflet and instructions that come with your product. If you have any questions, consult your doctor or pharmacist.
Give this medication through the nose, usually 1 to 3 times a day as directed by your doctor. Use the marked tube that comes with your medication. Place your prescribed dose into the tube. Deliver the solution into your nose as directed. Wash the tube with water after use, and shake it until it is completely dry.
If a child is using this medication, a parent or other responsible adult should supervise and help the child use this medication properly.
Limit drinking of water and other fluids while using this medication, especially in children and older adults. Consult your doctor for details. If you find that you are drinking more fluids than directed, tell your doctor right away. Your treatment will need to be adjusted.
Dosage is based on your medical condition and response to treatment. Do not use more desmopressin or use it more often than prescribed.
Use this medication regularly to get the most benefit from it. To help you remember, use it at the same time(s) each day.
Tell your doctor if your condition does not improve or if this medication stops working well.
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CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment.