Pesach Questions

 What are we supposed to do if our pets are on prescription food that is not kosher for Pesach?

 Good question. I wish your pet good health.

In the context of farm animals, the Halacha discusses cases in which animals simply need to eat chametz. The ultimate resolution is to sell the animal to a non-Jewish person, in the same manner that we sell chametz (i.e. a fully binding sale). It is preferable to not sell the food together with the animal (as it appears that you are in essence hiring him to feed the animal chametz on your behalf), but this does ultimately not invalidate the sale.

RYK