2-Hydroxyestradiol is classified as an endogenous steroid, catechol estrogen, and metabolite of estradiol. It is also a positional isomer of estriol. [A31630]

4-Hydroxytestosterone is testosterone substituted with a hydroxy group on the fourth carbon atom. It is an anabolic steroid with no therapeutic indications, which is prohibited from use in sports by the World Anti-Doping Agency. Formestane (Lentaron) acts …

9 Cuab30 has been used in trials studying the treatment and prevention of HER2/Neu Positive, HER2/Neu Negative, No Evidence of Disease, Estrogen Receptor Negative, and estrogen receptor positive, among others.

Afimoxifene (4-Hydroxytamoxifen, trade name TamoGel) is a new estrogen inhibitor under investigation for a variety of estrogen-dependent conditions, including cyclic breast pain and gynecomastia. TamoGel is formulated using Enhanced Hydroalcoholic Gel (EHG) T…

An aromatase inhibitor that produces a state of "medical" adrenalectomy by blocking the production of adrenal steroids. It also blocks the conversion of androgens to estrogens. Aminoglutethimide has been used in the treatment of advanced breast and prostate c…

Anastrozole is a non-steroidal aromatase inhibitor (AI), similar to [letrozole], used to decrease circulating estrogen levels in the treatment of postmenopausal women with estrogen-responsive breast cancer.[L8863] Anastrozole is also related to [exemestane], …

Bazedoxifene is a third generation selective estrogen receptor modulator (SERM), developed by Pfizer following the completion of their takeover of Wyeth Pharmaceuticals. In late 2013, Pfizer received approval for bazedoxifene as part of the combination drug D…

Bremelanotide is a 7 amino acid peptide used to treat hypoactive sexual desire disorder in premenopausal women.[L9635] Bremelanotide does not interact with alcohol.[A179686] The mechanism by which bremelanotide's action on receptors translates to a clinical e…

Hormone receptor (HR) positive, especially estrogen receptor-positive, HER2-negative breast cancer is the most common subtype of metastatic breast cancer, resulting in more than 400,000 deaths annually. Although endocrine-based therapy is the first line of tr…

CHF 4227 is a new selective estrogen receptor modulator (SERM). The compound has a high receptor affinity and has shown promising efficacy in the prevention of bone loss in animal models of osteoporosis. Additionally, the compound has shown no uterotrophic ac…

A powerful synthetic, non-steroidal estrogen. [PubChem]

A triphenyl ethylene stilbene derivative which is an estrogen agonist or antagonist depending on the target tissue.

The conjugated estrogens are noncrystalline mixtures of purified female sex hormones obtained either by its isolation from the urine of pregnant mares or by synthetic generation from vegetal material. Both of these products are later conjugated to natrium sul…

Custirsen is a benzopyran with potential antineoplastic activity. Custirsen acts as a selective estrogen receptor modulator (SERM), inhibiting the proliferation of estrogen-sensitive breast cancer cells. This agent also inhibits growth and induces apoptosis o…

As a diuretic, cyclothiazide inhibits active chloride reabsorption at the early distal tubule via the Na-Cl cotransporter, resulting in an increase in the excretion of sodium, chloride, and water. Thiazides like cyclothiazide also inhibit sodium ion transport…

An anti-androgen that, in the form of its acetate (cyproterone acetate), also has progestational properties. It is used in the treatment of hypersexuality in males, as a palliative in prostatic carcinoma, and, in combination with estrogen, for the therapy of …

A synthetic steroid with antigonadotropic and anti-estrogenic activities that acts as an anterior pituitary suppressant by inhibiting the pituitary output of gonadotropins. It possesses some androgenic properties. Danazol has been used in the treatment of end…

Dienestrol is a synthetic, non-steroidal estrogen. It is an estrogen receptor agonist. Estrogens work partly by increasing a normal clear discharge from the vagina and making the vulva and urethra healthy. Using or applying an estrogen relieves or lessens: dr…

A synthetic nonsteroidal estrogen used in the treatment of menopausal and postmenopausal disorders. It was also used formerly as a growth promoter in animals. According to the Fourth Annual Report on Carcinogens (NTP 85-002, 1985), diethylstilbestrol has been…

Diosmetin is an O-methylated flavone and the aglycone part of the flavonoid glycosides diosmin that occurs naturally in citrus fruits [A27231]. Pharmacologically, diosmetin is reported to exhibit anticancer, antimicrobial, antioxidant, oestrogenic and anti-in…

Droloxifene, a derivative of the triphenylethylene drug tamoxifen, is a novel selective estrogen receptor modulator (SERM). Droloxifene also exhibits more rapid pharmacokinetics, reaching peak concentrations and being eliminated much more rapidly than tamoxif…

Drospirenone is a synthetic progestin commonly found in the popular oral contraceptive, Yaz in combination with [Ethinyl estradiol].[L7973] Most recently, it was approved by both Health Canada and the FDA in combination with [Estetrol] as an oral contraceptiv…

A synthetic progestational hormone with no androgenic or estrogenic properties. Unlike many other progestational compounds, dydrogesterone produces no increase in temperature and does not inhibit ovulation.

Elacestrant is a non-steroidal small molecule and an estrogen receptor (ER) antagonist.[A256838,L44918] In January 2023, it was approved by the FDA for the treatment of ER-positive, HER2-negative, ESR1-mutated advanced or metastatic breast cancer.[L44918,L449…

Eldecalcitol (ED-71), a vitamin D analog, is a more potent inhibitor of bone resorption than alfacalcidol in an estrogen-deficient rat model of osteoporosis. Eldecalcitol, effectively and safely increased lumbar and hip bone mineral density (BMD) in osteopor…

Equilenin is an estrogenic steroid produced by horses. It has a total of five double bonds in the A- and B-ring. High concentration of equilenin is found in the urine of pregnant mares.

An estrogenic steroid produced by horses. It has a total of four double bonds in the A- and B-ring. High concentration of equilin is found in the urine of pregnant mares.

Erteberel is an estrogen receptor beta agonist that has been used in trials studying the treatment of Benign Prostatic Hyperplasia.

Esterified estrogens contain a mixture of estrogenic substances; the principle component is estrone. Preparations contain 75% to 85% sodium estrone sulfate and 6% to 15% sodium equilin sulfate such that the total is not <90%. Esterified estrogens are a man-ma…

Naturally or synthetically produced steroid estrogens have a wide range of pharmaceutical uses ranging from hormonal contraception to the treatment of menopausal symptoms.[L33184] Estetrol (E4) is a native estrogen occurring naturally during pregnancy, but ca…

Estradiol is a naturally occurring hormone circulating endogenously in females. It is commercially available in several hormone therapy products for managing conditions associated with reduced estrogen, such as vulvovaginal atrophy and hot flashes. Some avail…

Estradiol acetate is a pro-drug ester of [DB00783], a naturally occurring hormone that circulates endogenously within the human body. Estradiol is the most potent form of all mammalian estrogenic steroids and acts as the major female sex hormone. As a pro-dru…

Estradiol Benzoate is a pro-drug ester of [DB00783], a naturally occurring hormone that circulates endogenously within the human body. Estradiol is the most potent form of all mammalian estrogenic steroids and acts as the major female sex hormone. As a pro-dr…

Estradiol Cypionate is a pro-drug ester of [DB00783], a naturally occurring hormone that circulates endogenously within the human body. Estradiol is the most potent form of all mammalian estrogenic steroids and acts as the major female sex hormone. As a pro-d…

Estradiol Dienanthate is a pro-drug ester of [DB00783], a naturally occurring hormone that circulates endogenously within the human body. Estradiol is the most potent form of all mammalian estrogenic steroids and acts as the major female sex hormone. As a pro…

Estradiol Valerate (also known as E2V) is a pro-drug ester of [DB00783], a naturally occurring hormone that circulates endogenously within the human body. Estradiol is the most potent form of all mammalian estrogenic steroids and acts as the major female sex …

A hydroxylated metabolite of estradiol or estrone that has a hydroxyl group at C3-beta, 16-alpha, and 17-beta position. Estriol is a major urinary estrogen. During pregnancy, large amount of estriol is produced by the placenta. Isomers with inversion of the h…

Estrone, one of the major mammalian estrogens, is an aromatized C18 steroid with a 3-hydroxyl group and a 17-ketone. It is produced in vivo from androstenedione or from testosterone via estradiol. It is produced primarily in the ovaries, placenta, and in peri…

Estrone sulfate (as estropipate) is a form of estrogen. It has several uses such as: alleviate symptoms of menopause as hormone replacement therapy, treatment some types of infertility, treatment of some conditions leading to underdevelopment of female sexual…

Ethinylestradiol was first synthesized in 1938 by Hans Herloff Inhoffen and Walter Hohlweg at Schering.[A191107] It was developed in an effort to create an estrogen with greater oral bioavailability.[A191107] These properties were achieved by the substitution…

A synthetic progestational hormone used alone or in combination with estrogens as an oral contraceptive. Although etynodiol or ethynodiol are sometimes used as a synonym for ethynodiol diacetate, what is usually being referred to is actually ethynodiol diacet…

Exemestane is an oral steroidal aromatase inhibitor used in the adjuvant treatment of hormonally-responsive (also called hormone-receptor-positive, estrogen-responsive) breast cancer in postmenopausal women. It irreversibly binds to the active site of the enz…

Vasomotor symptoms (VMS), more colloquially known as hot flashes or night sweats, are some of the most common symptoms in menopause. With a median duration of 7.4 years, vasomotor symptoms are also the most common reasons why women seek treatments for menopau…

Fluoroestradiol F-18 is an imaging agent used with positron emission tomography (PET) to detect estrogen receptor-positive breast cancer lesions.[L14096] The ability to image ER-positive tumors _in vivo_ is advantageous in that, while helping to visualize tum…

Fluorofuranylnorprogesterone F-18 is under investigation in clinical trial NCT02455453 (Assessment of Functional Status of Estrogen Receptors in Breast Cancer by Positron Emission Tomography).

Formestane was the first selective, type I, steroidal aromatase inhibitor used in the treatment of estrogen-receptor positive breast cancer in post-menopausal women. Formestane suppresses estrogen production from anabolic steroids or prohormones. Formestane i…

Fulvestrant is a drug treatment of hormone receptor (HR)-positive metastatic breast cancer in post-menopausal women with disease progression following anti-estrogen therapy. It is an estrogen receptor antagonist with no agonist effects, which works both by do…

GDC-0927 is under investigation in clinical trial NCT02316509 (A Study of GDC-0927 in Postmenopausal Women With Locally Advanced or Metastatic Estrogen Receptor Positive Breast Cancer).

An isoflavonoid derived from soy products. It inhibits protein-tyrosine kinase and topoisomerase-II (DNA topoisomerases, type II) activity and is used as an antineoplastic and antitumor agent. Experimentally, it has been shown to induce G2 phase arrest in hum…

Gestrinone, also known as ethylnorgestrienone, is a synthetic steroid of the 19-nortestosterone group that is marketed in Europe, Australia, and Latin America, though not the United States or Canada, and is used primarily in the treatment of endometriosis. …