Can I use provera vaginally? If not why not?

[Cubsandmiel]

Can’t take oral utrogestan (soya allergy) and I think I’m getting a soya skin reaction too.

Got loads of provera, and am v v progesterone sensitive. It makes me anxious and depressed. Can I use it vaginally instead of utrogestan?

It's not licensed at all for that. I don't know why but it is only used orally in HRT either as a single tablet or as part of a combined sort.
It is probably not absorbed that way.