Common side effects of DDAVP may include:
headache,
nausea,
upset stomach or stomach pain,
diarrhea, or.
lushing of the face (warmth, redness, tingly feeling)
The above side effects should not alarm you.
Serious side effects of DDAVP may include:
swelling, weight gain;
a seizure;
weak or shallow breathing; or
a light-headed feeling, like you might pass out
If you have any of the above side effects, contact your doctor right away.
Signs to watch for:
Low sodium: headache, confusion, hallucinations, muscle cramps, severe weakness, vomiting, loss of coordination, feeling restless or unsteady;