I was wondering the same thing about eating eggs layed by chickens eating Starter/Finisher.
My 17-18 week old Barred Rock just layed her first egg. We hadn't switched her and her mates to layer food yet because we thought it was too early and wanted to finish the bag they were on.
I don't know how I feel about eating an egg laced with medicine
but I also hate to throw out one of our first eggs (We have 23 week olds just beginning to lay.)

My 17-18 week old Barred Rock just layed her first egg. We hadn't switched her and her mates to layer food yet because we thought it was too early and wanted to finish the bag they were on.

I don't know how I feel about eating an egg laced with medicine

