I use the Medrol dose pak too. But I cut it in half and take half the descending dose. Works like a charm for me. Prednisone is sl different from methylprednisolone (Medrol Dosepack). They result in different side effects, if any are going to occur. I can't tolerate Prednisone but can tolerate Decadron and methylprednisolone well at low doses. And I get the same desired effect at half doses. One size does not fit all pharmacologically.
Sorry you didn't tolerate methylprednisolone. If you ever need it again, you might mention to your prescriber that you'd like to try a half dose. They should be agreeable based on your experience.