My urologist prescribed DDAVP for me several years ago for bedwetting. The drug greatly reduces the number of wet nights but not 100% of them. When using the drug at night I went from wetting every night to about 4-5 nights per month. Since I sleep in bed with my wife and I never know which night will be wet, I wear a diaper every night just in case. I finally quit using it at night since I was wearing a diaper anyway, and the drug actually cost more than the diaper ($50 copay for 30 pills) so the lowest cost solution to bedwetting was to just use a diaper.
I still use the pills, but as Paul said, they are more useful in the daytime than at night. Not only are they handy in situations where rest room facilities are not readily available, but they are great for conferences, lectures, and meetings where you need to remember what took place. One of the effects of DDAVP (or desmopressin) is short term memory enhancement that lasts for several hours. See these articles:
http://www.antiaging-systems.com/a2z/desmopressin.htm and
http://www.biogenesis-antiaging.com/p47 ... n-(Minirin)/product_info.html. The tests were for the nasal spray but the pills work also, you might need to take one a little earlier.
College students would be lining up at their doctors’ complaining of bedwetting if they knew this.