by member_41389 » Fri Aug 20, 2021 8:01 pm
Hi
Apparently the half-life of desmopressin is about 2 to 3 hours and its effects last from about 6 hours up to about 10 hours. This suggest strongly that you need two, not one, dose a day to have proper cover. It's worth discussing this with the Nurse Helpline as I believe that the use of 2 doses a day also supports the message have a half a day a week where you take no desmopressin on order to minimise the chance of hyponatremis.
Hope this is useful, take care
Tim