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A study found that a single intramuscular injection of 5 mg estradiol valerate resulted in peak circulating levels of 667 pg/mL estradiol and 324 pg/mL estrone within approximately 2 and 3 days, respectively. [10] The duration of estradiol valerate at this dose and in this study was considered to be 7 to 8 days. [10]
Estradiol, mainly as esters including estradiol valerate, estradiol cypionate, and estradiol enanthate, is also the exclusive estrogen used in combined injectable contraceptives. [ 6 ] As of 2021, more than 95% of prescriptions are for combined hormonal birth control forms containing the synthetic estrogen ethinylestradiol (EE). [ 7 ]
10: 31.3 Summary: Side effects in a small phase 2 study of women with metastatic breast cancer randomized to ... 25–30 – 5 ≈ 5–8 d Estradiol valerate: Oil ...
[43] [7] [5] [54] [10] However, a metabolic study found that traces of radiolabeled estradiol enantate remained detectable in blood for at least 30 to 40 days and for as long as 60 days. [53] Studies have reported that the elimination half-life of estradiol enantate after a single 10 mg intramuscular injection was 5.6 to 7.5 days.
Estradiol valerate/prasterone enanthate (EV/DHEA-E), sold under the brand name Gynodian Depot among others, is an injectable combination medication of estradiol valerate (EV), an estrogen, and prasterone enanthate (DHEA-E), an androgen, estrogen, and neurosteroid, which is used in menopausal hormone therapy for women.
Estradiol: 25 μg/day – – Estriol: 30 μg/day: 0.5 mg 2x/week: 0.5 mg/day IM Tooltip Intramuscular or SC injection: Estradiol valerate – – 4 mg 1x/4 weeks Estradiol cypionate: 1 mg 1x/3–4 weeks: 3 mg 1x/3–4 weeks: 5 mg 1x/3–4 weeks Estradiol benzoate: 0.5 mg 1x/week: 1 mg 1x/week: 1.5 mg 1x/week SC implant: Estradiol: 25 mg 1x/6 ...
Estradiol valerate 2.5 to 5 mg + norethisterone enantate 50 to 80 mg in an oil solution [15] [16] Estradiol valerate 10 mg + hydroxyprogesterone caproate 500 mg in an oil solution [15] Estradiol cypionate 2.5 to 10 mg + medroxyprogesterone acetate 12.5 to 50 mg in a microcrystalline aqueous suspension [15] [16]
[129] [130] Estradiol-containing birth control pills, which contain 1 to 3 mg/day estradiol or estradiol valerate, have been found to increase SHBG levels by 1.5-fold. [ 131 ] [ 132 ] Both oral estradiol valerate at 6 mg/day and intramuscular estradiol valerate at 10 mg every 10 days have been found to increase SHBG levels by 2.5- to 3-fold in ...