Estradiol
/api/v1/drug/estradiolBoxed warning
ENDOMETRIAL CANCER, CARDIOVASCULAR DISORDERS, BREAST CANCER and PROBABLE DEMENTIA Estrogen-Alone Therapy Endometrial Cancer There is an increased risk of endometrial cancer in a woman with a uterus who uses unopposed estrogens. Adding a progestin to estrogen therapy has been shown to reduce the risk of endometrial hyperplasia, which may be a precursor to endometrial cancer. Adequate diagnostic measures, including directed or random endometrial sampling when indicated, should be undertaken to rule out malignancy in postmenopausal women with undiagnosed persistent or recurring abnormal genital bleeding [see WARNINGS, Malignant Neoplasms, Endometrial Cancer ]. Cardiovascular Disorders and Probable Dementia Estrogen-alone therapy should not be used for the prevention of cardiovascular disease or dementia [see CLINICAL STUDIES and WARNINGS, Cardiovascular Disorders, and Probable Dementia ]. The Women’s Health Initiative (WHI) estrogen-alone substudy reported increased risks of stroke and deep vein thrombosis (DVT) in postmenopausal women (50 to 79 years of age) during 7.1 years of treatment with daily oral conjugated estrogens (CE) [0.625 mg]-alone, relative to placebo [see CLINICAL STUDIES and WARNINGS, Cardiovascular Disorders ].
Mechanism of action
Sourced from openFDAMechanism-of-action class: Estrogen Receptor Agonists.
Indications
Sourced from openFDA- Estradiol Vaginal Cream, 0.01% is indicated in the treatment of moderate to severe symptoms of vulvar and vaginal atrophy due to menopause.ICD-10: N95.1
Contraindications
Sourced from openFDA- Estradiol Vaginal Cream, 0.01% should not be used in women with any of the following conditions: 1. Undiagnosed abnormal genital bleeding.contraindicated
Dosage & administration
Sourced from openFDAUse of Estradiol Vaginal Cream, 0.01% alone or in combination with a progestin, should be limited to the shortest duration consistent with treatment goals and risks for the individual woman. Postmenopausal women should reevaluate periodically as clinically appropriate to determine if treatment is still necessary. For treatment of vulvar and vaginal atrophy associated with the menopause, the lowest dose and regimen that will control symptoms should be chosen and medication should be discontinued as promptly as possible. For women who have a uterus, adequate diagnostic measures, including directed and random endometrial sampling when indicated, should be undertaken to rule out malignancy in cases of undiagnosed persistent or recurring abnormal genital bleeding. Usual Dosage: The usual dosage range is 2 to 4 g (marked on the applicator) daily for one or two weeks, then gradually reduced to one half initial dosage for a similar period. A maintenance dosage of 1 g, one to three times a week, may be used after restoration of the vaginal mucosa has been achieved. NOTE: The number of doses per tube will vary with dosage requirements and patient handling.
Warnings & precautions
Sourced from openFDASee BOXED WARNINGS . Systemic absorption may occur with the use of Estradiol Vaginal Cream, 0.01%. The warnings, precautions, and adverse reactions associated with oral estrogen treatment should be taken into account. 1. Cardiovascular Disorders An increased risk of stroke and DVT has been reported with estrogen-alone therapy. An increased risk of PE, DVT, stroke and MI has been reported with estrogen plus progestin therapy. Should any of these occur or be suspected, estrogen with or without progestin therapy should be discontinued immediately. Risk factors for arterial vascular disease (e.g., hypertension, diabetes mellitus, tobacco use, hypercholesterolemia, and obesity) and/or venous thromboembolism (VTE) (e.g., personal history or family history of VTE, obesity, and systemic lupus erythematosus) should be managed appropriately. a. Stroke In the WHI estrogen-alone substudy, a statistically significant increased risk of stroke was reported in women 50 to 79 years of age receiving daily CE (0.625 mg)-alone compared to women in the same age group receiving placebo (45 versus 33 per 10,000 women-years). The increase in risk was demonstrated in year one and persisted [see CLINICAL STUDIES ]. Should a stroke occur or be suspected, estrogen-alone therapy should be discontinued immediately. Subgroup analyses of women 50 to 59 years of age suggest no increased risk of stroke for those women receiving CE (0.625 mg)-alone versus those receiving placebo (18 versus 21 per 10,000 women-years) 3 .
Adverse reactions
Sourced from openFDASee BOXED WARNINGS, WARNINGS and PRECAUTIONS . Systemic absorption may occur with the use of Estradiol Vaginal Cream, 0.01%. The warnings, precautions, and adverse reactions associated with oral estrogen treatment should be taken into account. The following adverse reactions have been reported with estrogen and/or progestin therapy. 1 . Genitourinary System Abnormal uterine bleeding or spotting; dysmenorrhea or pelvic pain, increase in size of uterine leiomyomata; vaginitis, including vaginal candidiasis; change in cervical secretion; cystitis-like syndrome; application site reactions of vulvovaginal discomfort including burning and irritation; genital pruritus; ovarian cancer; endometrial hyperplasia; endometrial cancer. 2 . Breasts Tenderness, enlargement, pain, nipple discharge, fibrocystic breast changes; breast cancer. 3 . Cardiovascular Deep and superficial venous thrombosis; pulmonary embolism; myocardial infarction; stroke; increase in blood pressure. 4 . Gastrointestinal Nausea, vomiting; abdominal cramps, bloating; increased incidence of gallbladder disease. 5 . Skin Chloasma that may persist when drug is discontinued; loss of scalp hair; hirsutism; rash. 6 . Eyes Retinal vascular thrombosis, intolerance to contact lenses. 7 . Central Nervous System Headache; migraine; dizziness; mental depression; nervousness; mood disturbances; irritability; dementia. 8 . Miscellaneous Increase or decrease in weight; glucose intolerance; edema; arthralgias; leg cramps; changes in libido; urticaria; exacerbation of asthma; increased triglycerides; hypersensitivity.
Use in specific populations
Sourced from openFDAF. Pregnancy Estradiol Vaginal Cream, 0.01% should not be used during pregnancy [see CONTRAINDICATIONS ]. There appears to be little or no increased risk of birth defects in children born to women who have used estrogens and progestins as an oral contraceptive inadvertently during early pregnancy.
Pharmacokinetics
Sourced from openFDA- Metabolism
- Absorption Estrogen drug products are absorbed through the skin, mucous membranes, and the gastrointestinal tract after release from the drug formulation. Distribution The distribution of exogenous estrogens is similar to that of endogenous estrogens.
Overdosage
Sourced from openFDAOverdosage of estrogen may cause nausea, vomiting, breast tenderness, abdominal pain, drowsiness and fatigue, and withdrawal bleeding may occur in women. Treatment of overdose consists of discontinuation of Estradiol Vaginal Cream, 0.01% therapy together with institution of appropriate symptomatic care.
Approval history
Sourced from openFDA- Dec 22, 1994NDANDA020375Bayer Hlthcare
- Aug 7, 1998NDANDA020870Noven Pharms Inc
- Nov 18, 1998NDANDA020907Amneal
- Mar 26, 1999NDANDA020908Novo Nordisk Inc
- Sep 5, 2003NDANDA021544Teva Branded Pharm
- Nov 21, 2003NDANDA021258Bayer Hlthcare
- Mar 16, 2006NDANDA021676Bayer Hlthcare
- Jun 4, 2007NDANDA022038Vertical Pharms
FAERS reports
- 1Pain19,10610%
- 2Pulmonary Embolism14,3567.6%
- 3Injury11,7706.2%
- 4Deep Vein Thrombosis11,7136.2%
- 5Nausea11,4916.0%
- 6Drug Ineffective11,3826.0%
- 7Anxiety11,2965.9%
- 8Headache10,4915.5%
- 9Off Label Use9,4034.9%
- 10Fatigue8,7854.6%
- 11Product Adhesion Issue7,5013.9%
- 12Emotional Distress7,0043.7%
- 13Dyspnoea6,8833.6%
- 14Vomiting6,2133.3%
- 15Diarrhoea6,0593.2%
Literature
Recent PubMed references pinned to Estradiol as a MeSH major topic. Citations link to pubmed.ncbi.nlm.nih.gov.
- Feminizing and masculinizing gender-affirming hormone therapy affects fibrin clot characteristics in opposite directions.Research and practice in thrombosis and haemostasis · 2026 · Bøgehave M, Glintborg D, Christensen LL, et al.PMID 42254455DOI 10.1016/j.rpth.2026.106648
- Estradiol modulated brain connectivity in females during midlife performing an episodic memory task.Brain imaging and behavior · 2026 · Testo AA, Dumas JAPMID 42243347DOI 10.1007/s11682-026-01167-1
- Dose-dependent hormone actions at estrogen receptor enhancers specify distinct molecular and biological outcomes.Science advances · 2026 · Kim HB, Nandu T, Kim YJ, et al.PMID 42234735DOI 10.1126/sciadv.aec2424
- Pharmacodynamic interaction analysis of dydrogesterone, progesterone, and estradiol in combination-progestin HRT frozen embryo transfer: a prospective clinical cohort study.Reproductive biology and endocrinology : RB&E · 2026 · Eggersmann TK, Hamala N, Hiller RAF, et al.PMID 42226298DOI 10.1186/s12958-026-01569-2
- Toxicological Assessment of 17β-Estradiol and 17α-Ethinylestradiol After Adsorption in a Biomass Filter Associated with the Nanomaterial δ-FeOOH.International journal of environmental research and public health · 2026 · Junger Schaper F, Ramos IA, Soares SB, et al.PMID 42196769DOI 10.3390/ijerph23050677
- Efficacy and safety of dydrogesterone monotherapy versus estradiol-dydrogesterone combination therapy in perimenopausal women: a real-world cohort study.Frontiers in endocrinology · 2026 · Liu S, Zeng Y, Huang Z, et al.PMID 42181196DOI 10.3389/fendo.2026.1816597
- Estrogen protects against ethanol-induced astrocytic response in dorsal hippocampus but not ethanol-induced liver inflammation in ovariectomized mice.Physiology & behavior · 2026 · Correia D, Mebane DR, Marshall SA, et al.PMID 42173421DOI 10.1016/j.physbeh.2026.115379
- Hormonal therapies for post-abortion uterine recovery: Comparison of estradiol ± dydrogesterone, transdermal estradiol gel and combined oral contraceptives.Pakistan journal of pharmaceutical sciences · 2026 · Huang Q, Luo H, Dou X, et al.PMID 42170985DOI 10.36721/PJPS.2026.39.7.208.1
Clinical trials
The 10 most recently updated of 1,969 ClinicalTrials.gov registrations naming Estradiol as an intervention. Registration is not evidence of efficacy or safety — reference crosswalk only.
- Intrauterine Stent Placement Following Hysteroscopic Septum ResectionRecruiting · Interventional · 320 enrolled · Weill Medical College of Cornell UniversityNCT07032506updated 2026-06-12
- The Effect of Medical Management Following Excisional Surgery for Endometriosis: A Randomized Controlled TrialRecruiting · Phase 3 · Interventional · 110 enrolled · Main Line HealthNCT06439524updated 2026-06-12
- Targeted Therapy Directed by Genetic Testing in Treating Patients With Locally Advanced or Advanced Solid Tumors, The ComboMATCH Screening TrialRecruiting · Phase 2 · Interventional · 2,900 enrolled · National Cancer Institute (NCI)NCT05564377updated 2026-06-12
- Nab-Sirolimus and Endocrine Therapy in Recurrent Low Grade Serous Ovarian Cancer (NARETO)Active not recruiting · Phase 2 · Interventional · 37 enrolled · University of OklahomaNCT06494150updated 2026-06-12
- 18F FES-PET/MRI for Tailoring Treatment of Luminal A and Lobular Breast CancerRecruiting · Phase 2 · Interventional · 119 enrolled · Università Vita-Salute San RaffaeleNCT05982496updated 2026-06-12
- A Study to Evaluate the Effectiveness and Safety of Inavolisib in Participants With Endocrine-resistant, PIK3CA-mutated, Hormone Receptor-positive, HER2-negative Locally Advanced or Metastatic Breast CancerRecruiting · Observational · 500 enrolled · Hoffmann-La RocheNCT07347600updated 2026-06-12
- Adherence to Vaginal Estrogen Therapy in Hypoestrogenic Women With Recurrent Urinary Tract InfectionsActive not recruiting · Phase 4 · Interventional · 111 enrolled · University of California, IrvineNCT06353269updated 2026-06-11
- Phase 3 Study of RLY-2608 + Fulvestrant vs Capivasertib + Fulvestrant as Treatment for Locally Advanced or Metastatic PIK3CA-mutant HR+/HER2- Breast CancerRecruiting · Phase 3 · Interventional · 540 enrolled · Relay Therapeutics, Inc.NCT06982521updated 2026-06-11
- Roll-over Study to Allow Continued Access to RibociclibActive not recruiting · Phase 4 · Interventional · 134 enrolled · Novartis PharmaceuticalsNCT05161195updated 2026-06-11
- Study Assessing the Efficacy and Safety of Treatment With Alpelisib Plus Fulvestrant Versus Placebo Plus Fulvestrant in Chinese Men and Postmenopausal Women With Advanced Breast CancerActive not recruiting · Phase 2 · Interventional · 69 enrolled · Novartis PharmaceuticalsNCT04544189updated 2026-06-11
Frequently asked questions
- How does Estradiol work?
- Mechanism-of-action class: Estrogen Receptor Agonists.
- What is Estradiol used for?
- According to FDA labeling, Estradiol carries indications including: Estradiol Vaginal Cream, 0.01% is indicated in the treatment of moderate to severe symptoms of vulvar and vaginal atrophy due to menopause.. This is a reference summary of labeled uses, not medical advice or a treatment recommendation.
- What class of drug is Estradiol?
- Estradiol is classified as Natural and semisynthetic estrogens, plain, Estrogen, Estrogen Receptor Agonists, Bone Formation Stimulation, Gonadotropin Releasing Hormone Alteration, Hematologic Activity Alteration, Vaginal Function Alteration.
- What are the brand names for Estradiol?
- Estradiol is marketed under brand names including Alora, Bijuva, Climara, Climara Pro, Combipatch, Compudose, Delestrogen, Depo-estradiol.
- What are the contraindications for Estradiol?
- Estradiol labeling lists contraindications including: Estradiol Vaginal Cream, 0.01% should not be used in women with any of the following conditions: 1. Undiagnosed abnormal genital bleeding.. Always consult the full prescribing information and a clinician.
estradiol is illustrative MVP content compiled from public sources. pharmacopeia is for educational and informational use only and is not a substitute for professional medical advice.