Before you begin using a medication, be sure to inform your doctor of any medical conditions or Allergies you may have, any medications you are taking, whether you are pregnant or breast-feeding, and any other significant facts about your health. These factors may affect how you should use Ddavp Rhinyle (Desmopressin).

Cystic Fibrosis (CF): People with cystic fibrosis are susceptible to decreased levels of sodium in the body. Changes in fluids and electrolytes caused by Ddavp Rhinyle (Desmopressin) may cause worsening symptoms of CF. If you have CF, discuss with your doctor how Ddavp Rhinyle (Desmopressin) may affect your medical condition, how your medical condition may affect the dosing and effectiveness of Ddavp Rhinyle (Desmopressin), and whether any special monitoring is needed.

Effectiveness: Ddavp Rhinyle (Desmopressin) is not effective in controlling excessive urination caused by Kidney Disease, psychiatric conditions, low blood potassium, or high blood calcium.

Fluid and electrolyte balance: Fluid intake should be adjusted in order to reduce the possibility of water retention and low levels of sodium in the blood, especially in children and seniors. Talk to your doctor about how much fluid intake is appropriate for you or your child. People who are taking Ddavp Rhinyle (Desmopressin) should be closely monitored by their doctor. Stop taking Ddavp Rhinyle (Desmopressin) and get medical attention if you have symptoms of low sodium in the blood such as headache, nausea, or vomiting.

People who are dehydrated should wait until they are properly hydrated before taking Ddavp Rhinyle (Desmopressin).

Heart failure: Imbalance in fluid and electrolytes can cause heart failure to worsen. If you have heart failure, discuss with your doctor how Ddavp Rhinyle (Desmopressin) may affect your medical condition, how your medical condition may affect the dosing and effectiveness of Ddavp Rhinyle (Desmopressin), and whether any special monitoring is needed.

Kidney and liver function: People with decreased kidney or liver function are at an increased risk for electrolyte and fluid imbalance. Ddavp Rhinyle (Desmopressin) further increases the risk of developing low levels of sodium in the body. If you have decreased kidney or liver function, discuss with your doctor how Ddavp Rhinyle (Desmopressin) may affect your medical condition, how your medical condition may affect the dosing and effectiveness of Ddavp Rhinyle (Desmopressin), and whether any special monitoring is needed.

Nasal problems: People who have nasal conditions such as inflammation of the nose, scarring, or swelling may not completely absorb the medication. In these circumstances, the Ddavp Rhinyle (Desmopressin) nasal solution should not be used. Talk to your doctor about alternatives you can use.

Tolerance: There are reports of changes in response to the medication over time, usually when the medication has been used for longer than 6 months. Some people may experience decreased responsiveness, while others may experience a shortened duration of effect. If you notice this, contact your doctor.

Pregnancy: Ddavp Rhinyle (Desmopressin) should not be used during pregnancy unless the benefits outweigh the risks. If you become pregnant while taking Ddavp Rhinyle (Desmopressin), contact your doctor.

Breast-feeding: It is not known if Ddavp Rhinyle (Desmopressin) nasal solution passes into breast milk. If you are a breast-feeding mother and are taking Ddavp Rhinyle (Desmopressin) nasal solution, it may affect your baby. Talk to your doctor about whether you should continue breast-feeding.

Children: The safety and effectiveness of using Ddavp Rhinyle (Desmopressin) have not been established for children younger than 3 months of age.

Seniors: People over the age of 65 years may be more sensitive to the effects of Ddavp Rhinyle (Desmopressin).