It's actually a pullet starter-grower made by Ful-o-pep Feed. It does say medicated the under the name brand and type. It's designed for growing layer chickens from day of hatch to 5 weeks. Don't think it will hurt them either way, but since they are going to be finished with the bag soon I will look for another type with 20% protien to give them a boost in growth. Not to highjack your thread, but here are mine that I will have had a week tomorrow