Comparative Pharmacology
Head-to-head clinical analysis: DIETHYLSTILBESTROL versus ETHYNODIOL DIACETATE AND ETHINYL ESTRADIOL.
Peer-Reviewed Evidence
Head-to-head clinical analysis: DIETHYLSTILBESTROL versus ETHYNODIOL DIACETATE AND ETHINYL ESTRADIOL.
DIETHYLSTILBESTROL vs ETHYNODIOL DIACETATE AND ETHINYL ESTRADIOL
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Synthetic nonsteroidal estrogen that binds to estrogen receptors (ERα/ERβ), activating estrogen-responsive gene transcription, leading to proliferation of estrogen-sensitive tissues.
Combination hormonal contraceptive: ethynodiol diacetate is a progestin that suppresses gonadotropin secretion (LH and FSH) via negative feedback on the hypothalamic-pituitary axis, inhibiting ovulation; ethinyl estradiol is an estrogen that stabilizes the endometrium and increases cervical mucus viscosity, impeding sperm penetration.
0.5-2 mg orally once daily for palliative treatment of advanced prostate cancer; 5-15 mg orally once daily for prevention of postpartum breast engorgement.
1 tablet (1 mg ethynodiol diacetate / 35 mcg ethinyl estradiol) orally once daily for 21 days, followed by 7 placebo days.
None Documented
None Documented
Clinical Note
moderateDiethylstilbestrol + Digoxin
"Diethylstilbestrol may decrease the cardiotoxic activities of Digoxin."
Clinical Note
moderateDiethylstilbestrol + Digitoxin
"Diethylstilbestrol may decrease the cardiotoxic activities of Digitoxin."
Clinical Note
moderateDiethylstilbestrol + Deslanoside
"Diethylstilbestrol may decrease the cardiotoxic activities of Deslanoside."
Clinical Note
moderateDiethylstilbestrol + Acetyldigitoxin
Terminal elimination half-life is approximately 24 hours (range 20-30 hours) in adults; prolonged in hepatic impairment.
Ethynodiol diacetate: 12-14 hours; ethinyl estradiol: 13-27 hours (mean ~17 hours). Steady-state achieved after 3-4 days.
Primarily renal (90% as glucuronide and sulfate conjugates), with less than 5% excreted unchanged in urine; biliary/fecal elimination accounts for about 10%.
Renal (approximately 40% as metabolites), fecal (approximately 60% as metabolites). Ethynodiol diacetate is extensively metabolized; less than 1% excreted unchanged.
Category C
Category D/X
Estrogen
Estrogen
"Diethylstilbestrol may decrease the cardiotoxic activities of Acetyldigitoxin."