What are the side effects of DDAVP?
DDAVP has the best side effect profile of all the medications currently available to treat bedwetting. The tablets have a better side effect profile than the nasal spray. A serious and preventable side effect of DDAVP is water intoxication with resultant seizure or other central nervous system symptoms. DDAVP limits the amount of urine that the kidney will produce. If a child drinks a lot of fluids while taking DDAVP, the water will build up in the body and change the chemical (sodium) composition of the blood.