Desmopressin is a synthetic (man-made) form of the natural hormone arginine vasopressin. Arginine vasopressin is important in the regulation of blood, blood pressure, stomach and intestinal movement, uterine function, and kidney function Desmopressin is used to treat hemophilia A, von Willebrand's disease (Type I), and cranial diabetes insipidus.

DDAVP may be used in dogs to treat central diabetes insipidus. Follow your veterinarians instructions closely for administering the drug.

Store in a cool, dry place. This product does not need to refridgerated. Take desmopressin exactly as directed by your doctor. If you do not understand these directions, ask your doctor, nurse, or pharmacist to explain them to you. Take each oral dose with a full glass of water. The injectable forms of desmopressin are only for subcutaneous injection (under the skin) or intravenous injection (into the vein). If you are administering this medication at home, your doctor will give you detailed instructions on how to give yourself the injection. Do not inject this medication if you are not sure how. If you miss a dose then take the missed dose as soon as you remember. However, if it is almost time for your next dose, skip the dose you missed and take only your next regularly scheduled dose. Do not take a double dose of this medication unless otherwise directed by your doctor.

If you experience any of the following serious side effects, stop taking desmopressin and seek emergency medical attention or notify your doctor immediately: an allergic reaction (difficulty breathing; closing of your throat; swelling of your lips, tongue, or face; or hives); seizures; headache; nausea or abdominal cramps; shortness of breath; heartburn; or pain in the vaginal area. Other side effects may also occur. Notify your doctor if you experience water retention; flushing; chills; increased heart rate; weakness; dizziness; red or watery eyes; or redness, pain, or swelling at the injection site