hi I do use the medicated feed because the medicated feed is dosed with Amprolium which helps combat coccidosis. The probotic although it will help put good bacteria into the gut does not fight coccidosis. The probotic is more of a all over health benifit. but while very young the medicated feed can help prevent coccidosis with the Amprolium in it.So I use both. They won't interact with each other. I just got a new jar of probios myself for my chicks that are coming up.
After using it you will notice a nice difference in the stool and shouldn't have issues with pasty butt or loose stool! Because they are different things yes I do still use medicated feed. Hope this helps.
