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Average number of moderate-to-severe hot flashes per week with placebo and different doses of oral estradiol in menopausal women [40] [41]. Estradiol is used in menopausal hormone therapy to prevent and treat moderate to severe menopausal symptoms such as hot flashes, vaginal dryness and atrophy, and osteoporosis (bone loss). [11]
Estradiol (E2), also called oestrogen, oestradiol, is an estrogen steroid hormone and the major female sex hormone. It is involved in the regulation of female reproductive cycles such as estrous and menstrual cycles .
Estradiol levels with 50 to 100 μg/day transdermal estradiol patches applied to the forearm and to the scrotum in a crossover study in 2 men with prostate cancer. [204] In 35 men treated continuously with one 100 μg/day estradiol patch scrotally, the mean estradiol level was ~500 pg/mL (range ~125–1,200 pg/mL). [204]
Estradiol is an estrogen, or an agonist of the nuclear estrogen receptors (ERs), the estrogen receptor alpha (ERα) and the estrogen receptor beta (ERβ). [1] [2] [6] In one study, the EC 50 Tooltip half-maximal effective concentration value of estradiol for the human ERα was 50 pM (0.05 nM) and for the human ERβ was 200 pM (0.2 nM).
[50] [17] [28] [47] These men were age 51 to 84 years (mean 68 years), and men with pre-existing cardiovascular disease were excluded. [ 12 ] [ 17 ] [ 51 ] A considerable incidence of cardiovascular complications was reported for the estradiol undecylate group (76%; 16/21 incidence total); there was a 67% (14/21) incidence of cardiovascular ...
Alfatradiol, also known as 17α-estradiol and sold under the brand names Avicis, Avixis, Ell-Cranell Alpha, and Pantostin, is a weak estrogen and 5α-reductase inhibitor medication which is used topically in the treatment of pattern hair loss (androgenic alopecia or pattern baldness) in men and women.
In men, estrogens can cause breast development, feminization, infertility, low testosterone levels, and sexual dysfunction among others. Estrogens are agonists of the estrogen receptors , the biological targets of endogenous estrogens like estradiol .
50–100 mg 1x/3–6 months Notes: Premenopausal women produce about 230 ± 70 μg testosterone per day (6.4 ± 2.0 mg testosterone per 4 weeks), with a range of 130 to 330 μg per day (3.6–9.2 mg per 4 weeks).