Product image of Letrozole Clonmel Healthcare (Letrozole) supplied by GNH India

Letrozole Clonmel Healthcare

Active Ingredient:
Letrozole
Origin:
EU

Letrozole Clonmel Healthcare (Letrozole)

Letrozole, the active ingredient in Letrozole Clonmel Healthcare, is an aromatase inhibitor presented as an oral tablet for oral administration. It is used to lower estrogen levels and manage estrogen receptor‑positive breast cancer in postmenopausal women.

GNH India supplies Letrozole Clonmel Healthcare as a licensed, GDP‑compliant international pharmaceutical supplier serving oncology centres, hospitals and pharmacies worldwide, ensuring quality and regulatory compliance for global distribution.

Manufacturer / TM Owner

Clonmel Healthcare Ltd.

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Indications & Clinical Uses

Letrozole acts on hormone‑dependent breast cancer pathways and is employed in several clinical settings.

  • Adjuvant therapy of early‑stage ER‑positive breast cancer: reduces risk of recurrence after surgery.
  • Metastatic or advanced ER‑positive breast cancer: slows disease progression in postmenopausal patients.
  • Hormone‑responsive breast cancer in postmenopausal women: lowers estrogen to inhibit tumor growth.

How It Works

  • Letrozole selectively inhibits the aromatase enzyme (CYP19A1), blocking the peripheral conversion of androgens to estrogens. This reduction in circulating estrogen diminishes estrogen‑driven stimulation of breast cancer cells, thereby slowing tumor growth and proliferation in hormone‑sensitive disease.

Side Effects

Letrozole may cause a range of adverse reactions, from mild to severe.

Common Side Effects

  • Hot flashes: sudden feeling of warmth and sweating.
  • Joint and muscle pain: aching in joints or muscles.
  • Fatigue: persistent tiredness.
  • Nausea: upset stomach and possible vomiting.
  • Headache: mild to moderate head pain.
  • Dizziness: feeling light‑headed or unsteady.

Serious or Rare Side Effects

  • Severe liver injury: jaundice, elevated enzymes.
  • Pulmonary embolism or deep‑vein thrombosis: sudden chest pain or leg swelling.
  • Bone fracture: increased risk due to bone loss.
  • Severe allergic reaction: rash, swelling, difficulty breathing.
  • Myocardial infarction: chest pain, shortness of breath.
  • Hypercholesterolemia: markedly elevated cholesterol levels.

Precautions & Warnings

When prescribing Letrozole, clinicians should observe several safety measures.

  • Monitor bone mineral density: letrozole may accelerate bone loss; consider calcium and vitamin D supplementation.
  • Assess liver function: periodic liver‑enzyme testing is recommended.
  • Evaluate cardiovascular risk: increased risk of thromboembolic events warrants caution.
  • Avoid use in pregnancy: teratogenic, contraindicated in pregnant women.
  • Discontinue if severe adverse reaction occurs: follow medical guidance promptly.
  • Store at ambient temperature: keep below 25 °C, retain original packaging and protect from moisture.

Avoid Interactions

Letrozole can interact with several medicines, affecting its efficacy or safety.

Major Interactions (Avoid)

  • Concurrent estrogen replacement therapy: negates letrozole’s estrogen‑lowering effect.
  • Strong CYP2A6 inhibitors (e.g., ketoconazole): may raise letrozole plasma levels.
  • Strong CYP2A6 inducers (e.g., rifampin): may reduce therapeutic effectiveness.

Moderate Interactions (Monitor Closely)

  • Tamoxifen: may diminish overall hormonal treatment benefit.
  • Warfarin: letrozole can increase INR; monitor coagulation parameters.
  • Certain antidepressants (SSRIs): may alter letrozole metabolism.
  • Anticonvulsants (e.g., carbamazepine): may affect drug levels and require dose adjustment.

Frequently Asked Questions

Letrozole Clonmel Healthcare is used to treat estrogen receptor‑positive breast cancer in postmenopausal women. By lowering circulating estrogen, it helps control tumor growth in both early‑stage (adjuvant) and advanced (metastatic) disease settings.

Letrozole works by selectively inhibiting the aromatase enzyme, which converts androgens into estrogens in peripheral tissues. This inhibition reduces estrogen levels, decreasing the hormonal stimulation that drives growth of estrogen‑dependent breast cancer cells.

The specific dose of letrozole is determined by the prescribing clinician based on the patient’s condition, disease stage, and overall health. Physicians typically follow established clinical guidelines, but the exact regimen should be confirmed with the treating doctor.

Letrozole is classified as Pregnancy Category X, meaning it is contraindicated during pregnancy because it can cause fetal harm. It is also not recommended while breastfeeding, as it may be excreted in milk and affect the infant.

To order, 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 and any necessary import documentation.

Letrozole belongs to the aromatase inhibitor class, offering more potent estrogen suppression than tamoxifen, which blocks estrogen receptors. Compared with another aromatase inhibitor, anastrozole, letrozole has a similar efficacy profile but may differ slightly in side‑effect frequency, such as bone loss.

Letrozole tablets should be stored at ambient temperature, preferably below 25 °C. Keep them in the original container, protect from moisture and direct sunlight, and ensure the packaging remains sealed until use.

Letrozole is taken orally, usually as a tablet swallowed whole with water. It is generally taken once daily, with or without food, as directed by the prescribing physician.

Serious risks include severe liver injury, thromboembolic events such as deep‑vein thrombosis or pulmonary embolism, bone fractures due to accelerated bone loss, and rare allergic reactions. Patients should be monitored regularly for these potential complications.

Letrozole should not be used by pregnant or breastfeeding women, patients with known hypersensitivity to letrozole or any component of the formulation, and individuals with severe liver impairment without careful medical supervision.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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