My broody has been eating medicated chick starter right along with her chicks (they're about 7 weeks old - just switched them over to grower today) and has just started laying again this week. How long after she's no longer eating the medicated feed should we wait to eat her eggs?
I've never used the medicated chick feed myself. However, I've read here on BYC, I believe, that you can eat the eggs even if the hen is getting into the medicated chick starter. Here's someone else's post about the same thing: https://www.backyardchickens.com/forum/viewtopic.php?id=314148