They are having a close out on lots of Pigeon products. Many are excellent for chickens and the dosage is more appropriate for our birds. I recommend the Wormout Gel, it is water soluable so you don't have to catch each chicken and try to pry the beak open to dose it. Another good product is 3 in 1 which treats Worms, Cocci and parathyroid. All are issues with our birds. The wormer is only good for round worms but it is a good start for a chicken that is down and you don't know the proplem. It can save lots of time while you wait to see if they respond to the medication before starting another. Of course these are not approved for organic growers. I have been buying many of these products at Foy's Pigeon Supply and I love the reduced price. It's a good type to stock up that medicine chest for chickens The shipping is at a special price of $ 4.99 as well.