My son is using the Walmart generic of Similac Advance....someone gave me two containers of Similac Advance (the brand name). Can I use these along w/ the generic or will that upset his stomach to switch between the two.
I would go for it. You can always mix the two if you're worried. To test the waters. You could also compare the lineup of ingredients and I betcha they're really, really close!
Re: generic formula question