Thank you 
.
It's mind-boggling isn't it - not sure if you've done OE IVF already - assuming you have since you're now doing DE, but not necessarily. I "understood" all my meds in the UK, now I have similar things with totally different brand names and it's all very confusing! Dr Google has helped 
So. I was on the pill from 21 Jan - 21 Feb, to sync my cycle with the donor. For the last week, I have been down-regging on Synarel nasal spray twice a day, and I will continue with this until the night before EC.
From today, I have Estrimax (this is oestradiol, to thicken the lining the equivalent I had in the UK was progynova), three times a day until 2nd March, then 2 tablets twice a day from then on.
I am taking prednison, which is a steroid, to minimise immune reactions. My UK equivalent was prednisolone. I am on 1/2 tablet.
In addition to the above, I am taking two vitamin/mineral supplements: one of magnesium and vit B6 and one of metafolin. I can't remember what the mag/B6 was for, but the metafolin is a more easily absorbed form of folic acid and was prescribed because I have had one successful pregnancy, followed by several pregnancy losses and infertility. Apparently some women don't absorb folic acid properly and while they usually have enough reserve for one pregnancy, they don't have enough to sustain further ones. They didn't do any tests, just assumed from my history.
Is this similar to your protocol? I'm really not a fan of the Synarel spray - it tastes vile for ages I use it - I quite liked my buserelin injections (after being terrified about sticking needles in my stomach!) as it left me feeling lovely and zen-like .