Product image of Ovestin (Estriol) supplied by GNH India

Ovestin

Active Ingredient:
Estriol
Origin:
EU

Ovestin (Estriol)

Estriol, the active ingredient in Ovestin, is an estrogen hormone presented as a 0.5 mg/1 tablet for oral use. It treats menopausal symptoms and estrogen deficiency in women. GNH India supplies Ovestin as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals and pharmacies worldwide.

GNH India supplies Ovestin as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals and pharmacies worldwide.

Manufacturer / TM Owner

Aspen Pharma Trading Limited

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Indications & Clinical Uses

Ovestin is an estrogen medication that acts on hormonal pathways related to menopause and estrogen deficiency.

  • Menopausal vasomotor symptoms: Reduces frequency and severity of hot flashes.
  • Prevention of osteoporosis: Helps maintain bone mineral density.
  • Vaginal atrophy: Improves vaginal dryness and discomfort.
  • Hormone‑dependent cancer surveillance: Provides a controlled estrogen environment for monitoring.
  • Post‑menopausal hormone replacement: Supports overall hormonal balance.

How It Works

  • Estradiol binds to estrogen receptors (ERα and ERβ) in target tissues, initiating transcription of estrogen‑responsive genes. This receptor activation modulates the hypothalamic‑pituitary‑gonadal axis, influences bone remodeling, and promotes vascular and mucosal health, thereby alleviating estrogen‑deficiency symptoms.

Side Effects

Side effects vary with individual response and dosage.

Common Side Effects

  • Nausea: Mild to moderate stomach upset.
  • Breast tenderness: Temporary swelling or discomfort.
  • Headache: Light‑to‑moderate pain.
  • Fluid retention: Slight swelling of ankles or feet.
  • Mood changes: Irritability or mild depression.
  • Vaginal spotting: Light bleeding between periods.

Serious or Rare Side Effects

  • Thromboembolic events: Deep vein thrombosis or pulmonary embolism.
  • Stroke: Cerebrovascular accident risk.
  • Hepatic dysfunction: Elevated liver enzymes.
  • Endometrial hyperplasia: Abnormal uterine lining growth.
  • Allergic reaction: Rash, itching, or swelling.
  • Vision changes: Blurred or sudden loss of vision.

Precautions & Warnings

When prescribing Ovestin, clinicians should consider several safety aspects.

  • Cardiovascular risk assessment: Evaluate history of clotting disorders.
  • Cancer surveillance: Monitor for estrogen‑sensitive malignancies.
  • Liver function: Check hepatic enzymes before initiation.
  • Bone health: Assess baseline bone mineral density.
  • Pregnancy and lactation: Contra‑indicated unless benefits outweigh risks.
  • Store at ambient temperature: Keep below 25 °C, in original packaging, protected from moisture.

Avoid Interactions

Estradiol may interact with several drug classes, requiring careful management.

Major Interactions (Avoid)

  • Anticoagulants: May increase bleeding risk.
  • CYP3A4 inhibitors (e.g., ketoconazole): Elevate estradiol levels.
  • Aromatase inhibitors: Counteract estrogenic effects.

Moderate Interactions (Monitor Closely)

  • Anticonvulsants (e.g., phenytoin): Reduce estradiol efficacy.
  • Thyroid hormones: May alter hormone balance.
  • SSRIs/SNRIs: Potentially increase risk of serotonin syndrome.
  • Antihypertensives: May affect blood pressure control.

Frequently Asked Questions

Ovestin contains estriol, an estrogen hormone used in hormone replacement therapy to relieve menopausal symptoms such as hot flashes, to help maintain bone density, and to treat vaginal atrophy in post‑menopausal women.

Estriol binds to estrogen receptors in various tissues, activating gene transcription that supports bone remodeling, vascular health, and mucosal integrity, thereby compensating for the reduced estrogen levels that occur after menopause.

The specific dose of Ovestin is determined by the prescribing clinician based on the individual’s medical condition, age, and response to therapy; patients should follow the prescriber’s instructions.

Estriol is generally contraindicated during pregnancy and lactation unless the potential benefits outweigh the risks; clinicians must evaluate each case carefully and discuss safety with the patient.

To order Ovestin, submit an enquiry on the product page at gnhindia.com with 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 and import documentation.

Ovestin (estriol) is a weaker estrogen compared with estradiol‑based products, offering a potentially lower risk of estrogen‑related adverse events while still providing symptom relief; choice of therapy depends on individual risk‑benefit assessment.

Store Ovestin tablets at ambient temperature, below 25 °C, in the original container, protected from moisture and direct sunlight to maintain potency.

Ovestin is taken orally as a tablet, usually with water; the exact timing (e.g., with or without food) should follow the prescriber’s guidance.

Serious risks include thromboembolic events, stroke, hepatic dysfunction, and endometrial hyperplasia; patients should be monitored for signs of blood clots, liver issues, or abnormal uterine bleeding.

Women with a history of estrogen‑dependent cancers, active or past thromboembolic disease, uncontrolled liver disease, or known hypersensitivity to estriol should avoid using Ovestin.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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