It's not supposed to be used off label in any food animal. I think it's labeled for a one day treatment in cattle, so even in cattle it can't be used in a way that's not shown on the label.
Technically, I think a vet could get in trouble if they got caught prescribing it for any type of...
Sorry for your loss. :hugs
Once I suspect ascites, EYP, or cancer I euthanize. It's just not fair to the animal to let it slowly starve to death, which is usually what happens. :hit
See table 2 in this link: http://www.clevelandclinicmeded.com/medicalpubs/diseasemanagement/hepatology/complications-of-cirrhosis-ascites/
I don't know if the same applies to poultry or not. :idunno
This is the one that died being prepped:
Necropsy pictures here:
https://www.backyardchickens.com/t/821240/internal-laying-ascites-and-eyp-very-graphic-necropsy-pictures
-Kathy
I think you're doing the right thing even though she's not long for this world, because treating her will be a good learning experience, and if you can bring yourself to do a necropsy on her when she passes, you'll learn even more, like if the fluids build up is from cancer or EYP. It's it's...
Yesterday I drained a hen for a friend of mine and drained off about 1/3 of a gallon, and after doing so I was able to palpate objects in her abdominal cavity. I explained to him that it's not a cure, which he understood, and he agreed to let me necropsy her when he culls her.
-Kathy
Sorry for your loss and to bring up painful memories, but I thought you should know that it was this post that gave me the courage to drain my hens. I know it's not a cure, but it has given several of my hens many more months of a good life.
Thanks for you post,
Kathy