Quote from: jinruinooto on March 14, 2016, 09:57:53 AM
But, I smoke, and I'm worried that it's interfering.
I'm on Estradiol, spironolactone, and medroxyprogesterone.
I haven't noticed any new fat, my skin is still tight, but it may be softer, and I have no breast growth.
I take the Etradiol sublingually, which should bypass the smoking issue, because it gets into the bloodstream instead of going through my liver.
(doses removed because not allowed)
Sublingually, you will swallow some, it's not exactly like taking it non-orally. Smoking, on top of increasing health risks, does indeed interfere with estradiol metabolism because it is taken orally as it increases activity of CYP1A2 enzyme which increases metabolization/breakdown of estradiol as it is digested and absorbed. Studies have shown this.
N Engl J Med. 1985 Oct 17;313(16):973-5."To elucidate the effect of smoking on estrogen metabolism, we examined 136 postmenopausal women treated for one year with one of three different doses of combined estrogen-progestogen or placebo. The women were grouped according to smoking status, and serum levels of estrone and estradiol were measured before and after treatment. The results showed reduced levels of both estrogens in smokers as compared with nonsmokers in all three dosage groups. This reduction was most pronounced in the high-dose group..."
"Moreover, it was possible to demonstrate significant inverse correlations between the number of cigarettes smoked daily and the changes in the levels of serum estrone and estradiol, respectively, (P less than 0.001)."
Journal of Endocrinology (1999) 162, 265–270"Comparing smokers and non-smokers, plasma levels of Oe(1), Oe(2) and Oe(1)S were all found to be 40-70% lower in smokers compared with non-smokers when ERT was given orally (Oe(1)S, P<0.05; Oe(1) and Oe(2), P<0.01 for both). Oe(2) given orally caused a higher Oe(1)S/Oe(2) ratio but also a higher Oe(1)/Oe(2) ratio compared with parenteral therapy in smokers (40.2 versus 7(.)0, P<0.01; and 3.2 versus 0.8, P<0.05 respectively). No significant differences in these parameters in the different test-situations were seen in non-smokers. Except for a lower level of Oe(1)S in smokers (non-significant), no difference in plasma oestrogen levels between smokers and non-smokers was observed during parenteral therapy. In conclusion, cigarette smoking has been shown to have major impact on plasma oestrogen levels during oral but not during parenteral Oe(2) replacement."
Spironolactone also increases activity of CYP3A4 responsible for metabolizing oral E, thus could potentially reduce concentrations even further. This is an often ignored side-effect of spiro when E is taken orally.
Finally, medroxyprogesterone acetate is not the safest progestogen because:
- it may potentially increase the risk of breast cancer as some studies have found an association
- it increases thrombus formation and thus risk of clots, together with smoking, poses greater risks
- it has negative cardiovascular effects and opposes estrogen's positive ones, together with smoking, poses greater risks
- it can, in some, worsen mood, cause depression, sometimes to suicidal levels, or make one aggressive/irritable
- slightly androgenic
In contrast to other progestogens, especially bio-identical progesterone which is safer and does not have any of these side-effects except perhaps mood deterioration in some, while, in others, mood improvement.
You could discuss with your doctor the possibility of switching to non-oral estrogen (gel, patch, injections) and also to oral bio-identical progesterone OR hydroxyprogesterone caproate injections.
Best of luck.