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Estriol: Brands, Price & Uses in Bangladesh
Estriol is a weak, short-acting natural estrogen used mainly by the vaginal route, and in some markets orally and more.
About Estriol
Indications of Estriol
Estriol is a weak, short-acting natural estrogen used mainly by the vaginal route, and in some markets orally, for the following indications:
Established / Approved uses
- Vaginal (topical) use: Treatment of urogenital symptoms of estrogen deficiency in postmenopausal women, including vaginal dryness, itching, burning, and painful intercourse (dyspareunia) caused by vaginal atrophy.
- Preparation before gynaecological surgery or procedures: Short-course use to improve vaginal epithelial thickness before vaginal surgery or before taking a cervical (Pap) smear in atrophic tissue.
- Oral use (where marketed): Atrophy of the lower urogenital tract related to estrogen deficiency, and relief of climacteric (menopausal) vaginal complaints, as part of individualized hormone therapy.
Guideline-supported / adjunct uses
- Reduction of recurrent urinary tract infections in postmenopausal women that are related to urogenital atrophy, used as an adjunct alongside standard urological care.
Uses with limited/mixed evidence (off-label or adjunct)
- Cervical ripening: Estriol has been used off-label in obstetric practice to assist cervical ripening before induction of labour; evidence is limited and this is not a primary approved indication.
- Infertility due to cervical mucus hostility: Low-dose oral Estriol has been used as an adjunct in selected infertility protocols to improve cervical mucus quality, under specialist supervision.
Estriol is not indicated for prevention of cardiovascular disease or dementia, and its use should be individualized based on symptoms, risk factors, and physician assessment.
Dosage & Administration of Estriol
Dosing of Estriol depends on the indication, dosage form, and formulation strength available; the following reflects typical prescribing patterns and must be individualized by the treating physician.
| Indication | Form | Typical dosing |
|---|---|---|
| Vaginal atrophy / urogenital symptoms | Vaginal cream 0.1% | One applicator dose daily at bedtime for the first 2–3 weeks, then reduced to a maintenance dose of 1–2 applications per week, guided by response. |
| Preparation before vaginal surgery | Vaginal cream | Daily application for about 2 weeks before surgery. |
| Preparation before a cervical (Pap) smear in atrophic tissue | Vaginal cream | Daily application for about 7 days before the procedure. |
| Urogenital atrophy / climacteric complaints | Oral tablet 1 mg | Initial dose of 4–8 mg per day (taken as a single daily dose), then reduced to a maintenance dose of 1–2 mg per day once symptoms improve. |
| Peri-operative use before vaginal surgery (oral) | Oral tablet | 4–8 mg daily pre-operatively, then 1–2 mg daily post-operatively. |
| Infertility due to cervical mucus hostility (specialist use) | Oral tablet | 1–8 mg daily on specific days of the menstrual cycle, as directed by a fertility specialist. |
The lowest effective dose should be used for the shortest duration consistent with treatment goals, with periodic reassessment (see Duration of Treatment).
Side Effects of Estriol
Common side effects of Estriol include:
- Breast tenderness or enlargement
- Headache
- Nausea
- Vaginal discharge, local irritation, or itching (with vaginal use)
- Irregular vaginal spotting or breakthrough bleeding
- Fluid retention or mild swelling
Less common but serious effects (more relevant with prolonged or systemic/oral use) include venous thromboembolism, gallbladder disease, changes in liver function, and, rarely, endometrial hyperplasia with unopposed long-term use. Patients should seek urgent medical attention for calf pain/swelling, chest pain, sudden breathlessness, severe headache, visual disturbance, or jaundice.
Contraindications of Estriol
Estriol is contraindicated in patients with any of the following:
- Known hypersensitivity to Estriol or any component of the formulation
- Known, suspected, or past history of breast cancer, or other known or suspected estrogen-dependent malignancy
- Undiagnosed abnormal genital bleeding
- Untreated endometrial hyperplasia
- Known or suspected pregnancy
- Active or recent venous thromboembolism (e.g., deep vein thrombosis, pulmonary embolism) or a history of these conditions
- Active arterial thromboembolic disease (e.g., recent myocardial infarction or stroke)
- Severe hepatic impairment or active liver disease, including a history until liver function tests return to normal
- Known thrombophilic disorders
Frequently Asked Questions about Estriol
What is Estriol used for?
Estriol is mainly used to treat vaginal dryness, irritation, and painful intercourse caused by low estrogen levels after menopause, and to prepare the vagina before certain gynaecological procedures. Oral forms are also used for broader menopausal (climacteric) symptoms and, in specialist settings, for cervical mucus-related infertility.
Can I use Estriol during pregnancy?
No. Estriol is contraindicated in known or suspected pregnancy and should not be used if you are or may be pregnant. If you become pregnant while using Estriol, stop it and contact your physician immediately.
Is Estriol safe while breastfeeding?
Estriol is generally not recommended during breastfeeding because estrogens can reduce milk supply and small amounts may pass into breast milk. It should only be used if clearly needed and after consulting your physician.
How long does it take for Estriol vaginal cream to work?
Many women notice improvement in vaginal dryness and discomfort within a few weeks of starting Estriol, with an initial daily course of about 2–3 weeks typically followed by a lower maintenance dose.
What are the serious side effects to watch for with Estriol?
Seek urgent medical attention if you develop calf pain or swelling, chest pain, sudden breathlessness, severe headache, vision changes, or jaundice, as these may indicate blood clots, cardiovascular problems, or liver dysfunction associated with estrogen therapy.
Who should not use Estriol?
Estriol should not be used by anyone with known or suspected breast cancer or other estrogen-dependent cancer, undiagnosed vaginal bleeding, active blood clots or a history of them, severe liver disease, or known pregnancy, and by anyone allergic to Estriol.
Disclaimer
The information provided is accurate to the best of our knowledge, but it does not replace professional medical advice. We cannot guarantee its completeness or accuracy, and the absence of specific information about a drug should not be taken as an endorsement. We are not responsible for any consequences arising from this information, so please consult a healthcare professional for any concerns or questions.