Desmopressin you can read about here
http://www.petplace.com/drug-library/desmopressin-ddavp/page1.aspx
It is used to treat diabetes and also blood clotting issues in dogs. The above site discusses dose per pound of dog info for different uses for you to compare to. If your vet is using it for diabetes treatment you might want to ask about alternative meds.
You can read about Enalapril a heart med here
http://www.petplace.com/drug-library/enalapril-enacard/page1.aspx
and Etodolac a pain med here
http://www.petplace.com/drug-library/etodolac-etogesic/page1.aspx
Hope this helps you!
mcg is microgram and it depends on what its being used for how much per pound is given.
the tablets are in 1/10 of a milligram (.1mg)
A microgram = 0.001 milligram
so .1mg is 100mcg
I don't see where this is used for renal failure in dogs but it is in humans so this is likely another off label use of the drug.
I did find information where this is used to reduce excess urination in humans but it was not as effective as they hoped it might be at first.
I did find in the Merck manual that it can be used to reduce urination
http://www.merckvetmanual.com/mvm/index.jsp?cfile=htm/bc/40507.htm
The way this is dosed in general is the prescribing medical professional starts with a low dose and works up until it is effective.
It looks to me like it might reduce urine out put but is not treating the renal failure exactly.
My view on this is if it appears to be making him better able to cope with the kidney failure issue then you have to look at the alternatives of what would happen if you stopped it and if he would then be too ill to do anything he likes to do.
I try to measure care against the dog's quality of life. If this gives him some good time with you that he would not have without it then keeping him comfortable is of course the thing to do.
With this kind of problem its not about cures or long term side effects but about keeping the dog comfortable as long as possible. You don't want him to suffer but I'm sure you are appreciating the quality time you are getting with him because he is on meds.
If your dog is uncomfortable, showing bad side effects of the meds, no longer able to do what he loves to do at all, then that is the time I start discussing options with the vet to ensure I stay kind to the dog.
Dog Expert:Rescue, Train,Breed,Care
30+ yrs dog home vet care & nursing, rescue, behavior&training, responsible show breeding, genetics