That's too bad cause Corid was not readily available, and although it has been ordered, I had to give something to my hens cause they were passing blood and turning pale and lethargic from coccidia overload. Only thing available immediately was Albon 5% and I've been giving 15ml/gallon of water for the past 3 days. It was a "compromise" dose, not even the correct strength (not quite half the dose of directions for 12.5% Albon), but I was losing my hens. One turned nearly-white - I'm surprised she is still alive. I cannot believe how difficult Corid is to get. I called 5 feed stores and none of them had anything to treat hens for coccidia, except medicated chick starter feed (should I have used that instead?). I will always keep a stash of Corid on hand from now on. I guess there's no point to discontinuing Albon since I already gave it to them for 3 days now.5 days for slaughter. Nothing about layers but the caution is to not use it on pullets over 16 weeks of age. That to me would mean the eggs will never be fit to eat.