Product image of Letrozolo Tecnigen (Letrozole) supplied by GNH India

Letrozolo Tecnigen

Active Ingredient:
Letrozole
Origin:
EU

Letrozolo Tecnigen (Letrozole)

Letrozole, the active ingredient in Letrozolo Tecnigen, is an aromatase inhibitor presented as a tablet for oral use. It is employed to treat hormone receptor‑positive breast cancer in postmenopausal women by lowering estrogen levels that can stimulate tumor growth.

GNH India supplies Letrozolo Tecnigen as a licensed, GDP‑compliant international pharmaceutical supplier serving oncology centres, hospitals and pharmacies worldwide. The company adheres to stringent quality standards and provides reliable sourcing for clinical and retail settings. All shipments are accompanied by full documentation to facilitate regulatory approval in destination markets.

Manufacturer / TM Owner

Tecnimede - Sociedade Técnico-Medicinal, Sa

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Indications & Clinical Uses

Letrozole is used in the management of hormone‑dependent breast cancer, targeting estrogen‑driven tumor growth.

  • Hormone receptor‑positive breast cancer (postmenopausal): reduces estrogen production to inhibit tumor progression.
  • Adjuvant therapy for early‑stage breast cancer: improves disease‑free survival after surgery.
  • Metastatic breast cancer (postmenopausal): helps control disease spread by lowering circulating estrogen levels.

How It Works

  • Letrozole selectively binds to the aromatase enzyme in peripheral tissues, blocking the conversion of androstenedione and testosterone into estrone and estradiol. By inhibiting this final step of estrogen biosynthesis, systemic estrogen concentrations fall, depriving estrogen‑dependent tumor cells of a growth stimulus. The drug is administered orally and is metabolized primarily by hepatic cytochrome P450 isoforms.

Side Effects

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

Common Side Effects

  • Hot flashes
  • Joint and muscle pain
  • Fatigue
  • Nausea
  • Headache
  • Increased sweating

Serious or Rare Side Effects

  • Severe osteoporosis or bone fractures
  • Liver enzyme elevations or hepatitis
  • Deep vein thrombosis and pulmonary embolism
  • Anaphylactic or severe allergic reactions
  • Cardiac arrhythmias such as QT prolongation

Precautions & Warnings

When prescribing Letrozole, clinicians should consider several safety measures to minimize risks.

  • Monitor bone mineral density: assess risk of osteoporosis and consider calcium/vitamin D supplementation.
  • Evaluate liver function: perform baseline and periodic hepatic enzyme tests.
  • Assess cardiovascular risk: watch for signs of thromboembolic events.
  • Avoid use in premenopausal women: drug is ineffective and may cause ovarian stimulation.
  • Review concomitant medications: check for interactions that may alter letrozole exposure.
  • Store at ambient temperature: keep tablets in original packaging, protect from moisture and direct light.

Avoid Interactions

Letrozole’s metabolism and pharmacodynamics can be affected by other medicines, requiring careful management.

Major Interactions (Avoid)

  • Strong CYP3A4 inducers (e.g., rifampin, carbamazepine): markedly reduce letrozole plasma levels.
  • Estrogen‑containing hormone therapy: counteracts the intended estrogen suppression.
  • Tamoxifen: antagonistic effect on estrogen pathways, diminishing therapeutic benefit.

Moderate Interactions (Monitor Closely)

  • CYP2A6 or CYP3A4 inhibitors (e.g., fluvoxamine, ketoconazole): may increase letrozole exposure.
  • Warfarin: potential alteration of INR, requiring closer coagulation monitoring.
  • Selective serotonin reuptake inhibitors (e.g., fluoxetine): possible modest effect on metabolism.

Frequently Asked Questions

Letrozolo Tecnigen contains letrozole, an aromatase inhibitor indicated for the treatment of hormone receptor‑positive breast cancer in postmenopausal women. It is used in both early‑stage (adjuvant) and metastatic settings to reduce estrogen‑driven tumor growth.

Letrozole blocks the aromatase enzyme, which converts androgens into estrogens in peripheral tissues. By inhibiting this conversion, systemic estrogen levels fall, depriving estrogen‑dependent cancer cells of a key growth signal and thereby slowing tumor progression.

The specific dose of letrozole is determined by the prescribing healthcare professional based on the patient’s condition and clinical guidelines. In many treatment protocols, a common starting point is 2.5 mg taken once daily, but the exact regimen must be set by a qualified prescriber.

Letrozolo is not recommended for use during pregnancy or while breastfeeding. There is limited safety data, and the drug may cause fetal harm by disrupting estrogen pathways. Women of child‑bearing potential should use effective contraception during treatment and discuss any concerns with their physician.

To place an order, submit an enquiry on the product page at gnhindia.com, specifying the required quantity of Letrozolo Tecnigen. GNH India works with hospitals, pharmacies and procurement teams worldwide, verifies trade or institutional credentials, and then provides pricing, availability, shipping details and the necessary import documentation.

Letrozolo, like other third‑generation aromatase inhibitors (e.g., anastrozole, exemestane), offers potent estrogen suppression with a once‑daily oral regimen. Comparative studies suggest similar efficacy, while individual tolerability may differ; letrozolo is often chosen for its favorable pharmacokinetic profile and extensive clinical experience in postmenopausal breast cancer.

Letrozolo Tecnogen tablets should be stored at ambient temperature, below 25 °C. Keep them in the original packaging, protect from moisture, heat and direct sunlight, and ensure the container is tightly closed to maintain product stability throughout its shelf life.

Letrozolo is administered orally as a tablet, typically swallowed whole with water. It is usually taken once daily, with or without food, as directed by the prescribing clinician. Patients should follow the exact dosing schedule provided by their healthcare professional.

Serious risks include severe bone loss leading to fractures, liver toxicity, and thromboembolic events such as deep‑vein thrombosis or pulmonary embolism. Patients should report any new bone pain, signs of liver dysfunction (e.g., jaundice), or unexplained swelling or shortness of breath to their physician promptly.

Letrozolo is contraindicated in premenopausal women, patients with known hypersensitivity to letrozole or other aromatase inhibitors, and individuals with severe liver impairment. It should also be avoided in patients receiving estrogen‑containing hormone therapy, as the combination negates its therapeutic effect.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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