I am a fan of getting things like this from an MD whenever possible. I would find a different Dr. who will if you must use Metformin. I am a fan if 2iu of Humalog PWO most days. You can do many things to maintain insulin sensitivity as well.

If there was any sort of demand for this I would carry it - I have to say I have never been asked for this before. If there is an interest I can arrange to get the necessary quantity and maybe do a group buy. If you want a reasonable quantity I can do a special order too.