... ESTRADIOL (Estring™, Femring™) vaginal ring is an insert that contains a natural estrogen female hormone. Estradiol is essential for maintaining normal female functions and is normally produced by the ovaries. After menopause, the ovaries decrease their production of this hormone. Estradiol vaginal rings can help relieve symptoms of vaginal irritation and dryness and urinary tract irritation that occurs in some women during menopause. In addition, the Femring™ vaginal ring can help relieve hot flashes, as it contains a higher estrogen dosage than other vaginal rings. Generic estradiol vaginal rings are not yet available. ...
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Estradiol Systematic (IUPAC) name (8S,9S,13S,14S,17S)-13-methyl- 6,7,8,9,11,12,14,15,16,17-decahydro cyclopenta[a]phenanthrene-3,17-diol Identifiers CAS number 50-28-2 ATC code G03CA03 PubChem 5757 Chemical data Formula C18H24O2  Mol. weight 272.39 Pharmacokinetic data Bioavailability 97-99% is bound Metabolism Liver Half life ~ 13 hours Excretion Urine Therapeutic considerations Pregnancy cat. X (USA) Legal status S4 (Au), POM (UK), â„ž-on ...
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