ethinyl estradiol

ethinyl /eth·i·nyl/ (eth´ĭ-nil) the radical HCtbondC—, derived from acetylene.

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ethinyl estradiol  a semisynthetic derivative of estradiol; used in combination with a progestational agent as an oral contraceptive, in hormone replacement therapy, and as an antineoplastic in the treatment of advanced breast and prostate cancers.

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eth·i·nyl estradiol (th-nl)

n.

A synthetic estrogen derivative commonly used in oral contraceptives.

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Ethinyl estradiol

A semi-synthetic derivative of estradiol—an estrogen or female sex hormone—used in birth control pills and combined ECPs.

Mentioned in: Emergency Contraception

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ethinyl estradiol

[eth′inil]

an estrogen.

indications It is prescribed in the treatment of postmenopausal breast cancer, menstrual cycle irregularities, prostatic cancer, and hypogonadism and for contraception and relief of menopausal vasomotor symptoms.

contraindications Thrombophlebitis, abnormal genital bleeding, known or suspected pregnancy, or known hypersensitivity to this drug prohibits its use.

adverse effects Among the more serious adverse effects are thrombophlebitis, embolism, and hypercalcemia. See also estrogen.

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ethinyl [eth´ĭ-nil]

the radical HC≡C—, derived from acetylene.

ethinyl estradiol an estrogen derived from estradiol, used together with a progestational agent as a component of many oral contraceptives, in hormone replacement therapy, and as an antineoplastic in the treatment of advanced breast and prostate cancers; administered orally.

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ethinyl estradiol

(eth´inil es´trdī´ol),
n brand names: Estinyl;
drug class: nonsteroidal synthetic estrogen;
action: affects release of pituitary gonadotropins, inhibits ovulation, promotes adequate calcium use in bone structure;
uses: menopause, prostatic cancer, breast cancer, postmenopausal osteoporosis.