As others have said you can't really give an equivalence other than low, medium and high because there is such a huge difference in how women absorb these products and the equivalence is based on an average of a number of women. A paper I have on the pharmacology of all of this mentions the variation:
"In contrast to the general belief that is
based on the graphic presentation of mean values,
a wide range of estrogen serum levels are
measured in women treated with the same
patch. Using patch or gel, there are large
interindividual variations in the estradiol levels,
which may differ by up to a factor of 10, and, in as
much as 30% of the patients treated with a 50 mg
patch, the estradiol concentrations are low. There
are also considerable short-term intraindividual
changes in the estradiol levels "The main thing to note is the variation by up to a factor of 10!!!! That is huge!!
Some women who have had total hysterectomy with ovary removal are prescribed higher doses than the maximum (ie higher than 2 mg oral oestrogen or the higher premarin, 4 gel, 100 mcg patch) - but it's not usual otherwise and should not be necessary. Moonbeam I think is one of them.
You would not want to achieve oestrogen levels that are at the ovulatory peak - ie very high - throughout your whole cycle, all the time. I think I said recently elsewhere that I read that HRT doses are designed to approximately give an contstant oestrogen level averaged over the whole cycle - somewhere in the 300's pmol/l - although some women have stated they regularly have higher than this and feel great but the downside is the amount of progesterone needed if you are rarely ovulating. I gave the ref range on another thread recently but here it is again:
70-510 females: early fol. phase (day 5)
390-1480 females: preovulatory peak
70-600 females: luteal phase
< 130 post-menopausal
However the aim is also to reach the level at which symptoms (of oestrogen deficiency) are eliminated - but as you say this is tricky in early peri-menopause because adding a very high amount to an oestrogen peak will probably cause symptoms too (I've no idea about these!).
Yes Elleste Solo is bio-identical as Briony says - all the ones containing estradiol are - including tablets, patches and gel. They are all synthetic products though, in that the estradiol has been manufactured in the lab from the raw material which comes from plants ( soy/yam I believe?).
I had forgotten you were on oral oestrogen and yes I would completely agree that a transdermal oestrogen preparation could make you feel completely different - maybe better! For a start they don't have to be digested and then metabolised through the liver - a lot of the estradiol is metabolised to estrone so maybe this affects how one feels?
And Clovie - don't
ever apologise for asking questions!!!!!!!!!! Only very rarely do members "over-stay their welcome" and then it's obvious
Hurdity x