Product image of Montadiol (Estradiol Hemihydrate) supplied by GNH India

Montadiol

Active Ingredient:
Estradiol Hemihydrate
Origin:
EU

Montadiol (Estradiol Hemihydrate)

Estradiol hemihydrate, the active ingredient in Montadiol, is an estrogen presented as a vaginal formulation for local use. It is used to treat estrogen deficiency symptoms in postmenopausal women.

GNH India supplies Montadiol as a licensed, GDP-compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

Manufacturer / TM Owner

Pharmazeutische Fabrik Montavit Ges.M.B.H.

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Indications & Clinical Uses

Montadiol is an estrogen product that acts on the genitourinary tract to relieve menopausal changes.

  • Vulvovaginal atrophy: reduces dryness, itching and irritation of the vaginal mucosa.
  • Postmenopausal dyspareunia: improves lubrication and lessens pain during intercourse.
  • Genitourinary syndrome of menopause: alleviates urinary urgency, frequency and mild incontinence.

How It Works

  • Estradiol hemihydrate binds to intracellular estrogen receptors (ERα and ERβ) in target tissues. The receptor‑ligand complex translocates to the nucleus, where it binds estrogen‑responsive elements on DNA, modulating transcription of genes that maintain vaginal epithelium, collagen synthesis, and vascularisation, thereby restoring tissue integrity and function.

Side Effects

Montadiol may cause a range of adverse reactions, most of which are mild and reversible.

Common Side Effects

  • Vaginal irritation or burning.
  • Local itching or redness.
  • Spotting or light vaginal bleeding.
  • Headache.
  • Nausea.
  • Breast tenderness.

Serious or Rare Side Effects

  • Endometrial hyperplasia or carcinoma.
  • Deep vein thrombosis or pulmonary embolism.
  • Stroke or myocardial infarction.
  • Severe allergic reaction (anaphylaxis).
  • Hepatotoxicity.
  • Visual disturbances.

Precautions & Warnings

Before using Montadiol, consider the following safety measures.

  • Contraindications: Do not use in women with known estrogen‑dependent cancers or active thromboembolic disease.
  • Pregnancy: Avoid use during pregnancy; estrogen can affect fetal development.
  • Breastfeeding: Use only if the benefit outweighs potential risk to the infant.
  • Interactions: Review concomitant medications, especially anticoagulants and hormonal therapies.
  • Monitoring: Periodic pelvic examinations are advised to detect abnormal uterine bleeding.
  • Store at below 25°C: keep in the original packaging, protect from moisture and direct sunlight.

Avoid Interactions

Montadiol can interact with several drug classes; awareness helps minimise risk.

Major Interactions (Avoid)

  • Combined hormonal contraceptives: may increase risk of thromboembolic events.
  • Anticoagulants (e.g., warfarin): estrogen can potentiate anticoagulant effect, raising bleeding risk.
  • Hepatotoxic drugs: concurrent use may exacerbate liver injury.

Moderate Interactions (Monitor Closely):\n- Selective serotonin reuptake inhibitors (SSRIs): may alter estrogen metabolism.

  • Antiepileptic drugs (e.g., carbamazepine, phenytoin): can reduce estradiol levels, diminishing efficacy.
  • Thyroid hormone replacement: estrogen may increase thyroid‑binding globulin, affecting dosage requirements.

Frequently Asked Questions

Montadiol is a prescription vaginal estrogen product containing estradiol hemihydrate. It is primarily used to treat symptoms of estrogen deficiency in postmenopausal women, such as vulvovaginal atrophy, dyspareunia, and the broader genitourinary syndrome of menopause.

Estradiol hemihydrate acts as an agonist at estrogen receptors in vaginal and uterine tissues. By binding these receptors, it triggers gene transcription that restores the thickness and elasticity of the vaginal epithelium, improves lubrication, and supports normal urinary tract function.

The specific dose and dosing schedule of Montadiol are determined by the prescribing clinician based on the individual’s condition, severity of symptoms, and overall health status. Patients should follow the prescriber’s instructions and not alter the regimen without medical advice.

Montadiol is generally contraindicated during pregnancy because systemic estrogen exposure can affect fetal development. Use while breastfeeding is only considered if the potential benefit justifies any possible risk to the infant, and this decision should be made by a healthcare professional.

To request Montadiol, submit an enquiry on the product page at gnhindia.com specifying the required quantity. GNH India works with hospitals, pharmacies and procurement teams worldwide, verifies trade or institutional credentials, and then provides pricing, availability, shipping details (including any cold‑chain needs) and required import documentation.

Montadiol contains estradiol hemihydrate, a potent natural estrogen, similar to other vaginal estradiol formulations. Compared with conjugated estrogen or estriol preparations, estradiol provides a more direct replacement of the primary estrogen lost at menopause, often resulting in faster symptom relief, though individual response may vary.

Montadiol should be stored at temperatures below 25 °C, in its original packaging, protected from moisture and direct sunlight. Keep the product out of reach of children and avoid exposing it to excessive heat or humidity to maintain its stability.

Montadiol is applied intravaginally using the supplied applicator or as directed by the prescriber. The patient inserts the product into the vagina, typically once daily for an initial period, followed by a maintenance schedule that the clinician determines based on therapeutic response.

Serious risks, although rare, include endometrial hyperplasia or carcinoma, venous thromboembolism (deep‑vein thrombosis, pulmonary embolism), stroke, myocardial infarction, severe allergic reactions, and hepatotoxicity. Patients should report any abnormal uterine bleeding, chest pain, shortness of breath, or signs of an allergic reaction immediately.

Montadiol is not recommended for women with a history of estrogen‑dependent cancers (such as breast or endometrial cancer), active or past thromboembolic disease, uncontrolled hypertension, liver disease, or known hypersensitivity to estradiol or any excipients in the formulation. A healthcare professional should evaluate suitability before prescribing.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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