This business of advancing years doesn't come cheap, does it?
As to the five Vagifem, it used to come in a 25 mcg dose as well, but they now only do the 10 mcg version for "commercial" reasons. I do seem to need the old dose of 50 mcg per week. Also, the Estring vaginal ring delivers 50 mcg per week, so there are no problems with this dosage.
I also use 100 mcg Estradot patches and Testogel, but luckily, as I am over 60, I no longer pay prescription charges.
I can see that it is expensive for you in Ireland, but hopefully it is easier to access GP services there than it is here!
Hope the Vagifem works well for you.
JP x