aurora, I am not allergic to Utrogestan (at least I don't think so) but a few months ago, I got to the stage where I just couldn't take it anymore, full stop.
Very long story short, I have been using 50mg body identical progesterone every day alongside oestrogen and testosterone for 3 months with excellent results. So far so good, no side effects, no breast pain, no bleeding - yippee!!! My German gynaecologist pointed me in the right direction and said that sublingual/buccal progesterone is often used in Germany as part of HRT. We had a chat about it yesterday when I had my transvaginal scan and she thinks I tolerate it better than Utrogestan because of the way it is absorbed through the mucous membrane which makes sense - I can assure you that in my case at least, it is a very different experience to Utrogestan. I thought I was the most progesterone intolerant person on earth and went into this new regime with a great deal of reluctance but I was wrong, I am not progesterone intolerant per se, I just can't take Utrogestan or any form of synthetic progesterone. I wondered why I didn't have any history of PMS pre-menopause. Now it all makes sense.
My reasons for switching to this form of progesterone are different to your own - I needed hormone stability to avoid migraines and I also didn't want any more periods - but it might be worth a try? If you have an allergic reaction you will know pretty quickly.
As far as I know, this type of progesterone is not available over the counter in Spain.
Lenzetto is a great product isn't it? Very user friendly too.