Thank you for the information!!! My girl is suffering the same, and I think this is the problem. Where can I get this stuff?
We just bought a packet of it from a local farm-supply store yesterday for about $7. Places like Coastal should carry it.
We got it to treat one of our Red Stars, a former factory-farm bird, who we thought had a bound egg until I realized what I felt when palpating her abdomen wasn't an egg but a hardening sac from the increasing fluid accumulation. She had all the other typical symptoms of EYP, too:
wide stance, waddling, droopy tail, frequent sitting, visible straining, and watery droppings.
The directions say to dissolve it in the chickens' drinking water, but she was acting fairly lethargic and I wasn't sure she would actually drink anything. I also wanted to get it in her system as soon as possible, so, based on the advice of some posts to dissolve a tablespoon per gallon of water and a statistic I found saying that chickens drink about a half-liter of water each day, I figured that the approximate daily dose would be about a third of a teaspoon. I dissolved that in a couple milliliters of water – I had to stir it for several minutes before it completely dissolved – and dripped it into her beak a little bit at a time with a 3 mL needleless syringe. Just a couple hours later, her tail was less droopy and she was more active.
This morning, her tail is almost as high as usual and she is very actively eating, drinking, and socializing. Her stance is more natural and her abdomen seems softer, though still much fuller than usual. We gave her another dose this morning and are hoping for the best, though I know we're not out of the woods yet. If she continues to improve, I think we'll continue to medicate her for about a week.
We've lost a couple birds to EYP in the past and seeing that Duramycin might be the solution has me jittery with excitement. Many thanks to those who suggested it!
unicornia: If you find some and administer it to your hen, I'd love to know what your outcome is. Good luck!