NCI Drug Dictionary

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The NCI Drug Dictionary contains technical definitions and synonyms for drugs/agents used to treat patients with cancer or conditions related to cancer. Each drug entry includes links to check for clinical trials listed in NCI's List of Cancer Clinical Trials.

estradiol vaginal ring
A flexible elastomer ring containing 17 beta-estradiol used for estrogen replacement. Upon vaginal insertion, estradiol vaginal ring releases a consistent low-dose of estrogen which binds to and activates nuclear receptors in estrogen-responsive tissues. By increasing the amount of estradiol locally, symptoms of vaginal dryness or decreased sexual interest may improve. 17 beta-estradiol is the major naturally occurring estrogen produced in the ovaries of premenopausal women. Check for active clinical trials using this agent. (NCI Thesaurus)

US brand name:ESTRING