Product image of Letrozole Pharmacare (Letrozole) supplied by GNH India

Letrozole Pharmacare

Active Ingredient:
Letrozole
Origin:
EU

Letrozole Pharmacare (Letrozole)

Letrozole, the active ingredient in Letrozole Pharmacare, is an aromatase inhibitor presented as an oral tablet for oral use. It is indicated for the treatment of postmenopausal hormone receptor‑positive breast cancer, reducing estrogen‑driven tumor growth.

GNH India supplies Letrozole Pharmacare as a licensed, GDP‑compliant international pharmaceutical supplier serving oncology centres worldwide.

Manufacturer / TM Owner

Pharmacare Premium Limited

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Indications & Clinical Uses

Letrozole acts on estrogen‑dependent breast cancer pathways and is used in several clinical settings.

  • Postmenopausal hormone receptor‑positive breast cancer: reduces tumor progression by lowering circulating estrogen levels.
  • Adjuvant therapy of early‑stage hormone‑dependent breast cancer: helps prevent recurrence after surgery.
  • Metastatic hormone‑dependent breast cancer: slows disease spread in advanced cases.

How It Works

  • Letrozole selectively inhibits the aromatase enzyme, which converts adrenal and ovarian androgens into estrogens. By blocking this peripheral conversion, systemic estrogen concentrations fall, depriving estrogen‑responsive tumor cells of growth stimulation. The inhibition is reversible and dose‑dependent, leading to sustained estrogen suppression in postmenopausal patients.

Side Effects

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

Common Side Effects

  • Hot flashes: sudden feeling of warmth and sweating.
  • Joint or muscle pain: arthralgia or myalgia.
  • Fatigue: persistent tiredness.
  • Nausea: mild gastrointestinal upset.
  • Headache: tension‑type or migraine‑like pain.

Serious or Rare Side Effects

  • Osteoporosis or bone fractures: decreased bone mineral density.
  • Severe liver injury: elevated transaminases or hepatitis.
  • Cardiovascular events: thromboembolism or myocardial infarction.
  • Allergic reactions: rash, pruritus, or anaphylaxis.
  • Elevated cholesterol: significant dyslipidemia.

Precautions & Warnings

When prescribing Letrozole, clinicians should consider several safety measures.

  • Assess bone health: baseline DEXA scan and monitor for osteoporosis.
  • Monitor liver function: periodic liver enzyme tests.
  • Evaluate cardiovascular risk: check blood pressure and lipid profile.
  • Counsel on menopausal symptoms: manage hot flashes and vaginal dryness.
  • Review concomitant medications: avoid drugs that strongly affect CYP2A6.
  • Store at ambient temperature: keep below 25 °C in original packaging, protect from moisture.

Avoid Interactions

Letrozole can interact with other medicines that affect its metabolism or hormonal pathways.

Major Interactions (Avoid)

  • Strong CYP2A6 inhibitors (e.g., ketoconazole): may increase Letrozole exposure.
  • Estrogen‑containing therapies (e.g., hormone replacement): counteract therapeutic effect.
  • Tamoxifen: antagonistic action on estrogen pathways.

Moderate Interactions (Monitor Closely)

  • Warfarin: potential alteration of anticoagulant effect.
  • Corticosteroids: may affect bone density when combined.
  • Antidepressants (SSRIs): possible impact on estrogen metabolism.
  • Anticonvulsants (e.g., carbamazepine): may reduce Letrozole levels.
  • Herbal supplements (St. John’s wort): may induce metabolism.

Frequently Asked Questions

Letrozole Pharmacare is used to treat postmenopausal women with hormone receptor‑positive breast cancer. It can be employed as primary therapy for advanced disease, as adjuvant treatment after surgery to reduce recurrence risk, and in metastatic settings to slow tumor progression.

Letrozole works by selectively inhibiting the aromatase enzyme, which is responsible for converting androgens into estrogens in peripheral tissues. By blocking this conversion, estrogen levels drop, depriving estrogen‑dependent cancer cells of the growth signal they require.

The dose of Letrozole is determined by the prescribing clinician based on the patient’s condition, renal and hepatic function, and treatment goals. Typical regimens are individualized, and patients should follow the exact instructions provided by their healthcare professional.

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

To order Letrozole Pharmacare, submit an enquiry on the product page at gnhindia.com, specifying the required quantity. GNH India supplies hospitals, pharmacies and procurement teams worldwide, verifies trade or institutional credentials, and then provides pricing, availability, shipping details and any required import documentation.

The primary alternative to Letrozole is another aromatase inhibitor, anastrozole. Both lower estrogen levels, but Letrozole is often considered slightly more potent, while anastrozole may have a different side‑effect profile. Choice between them depends on clinical response, tolerability and physician preference.

Letrozole tablets should be stored at ambient temperature, preferably below 25 °C, in the original blister pack to protect from moisture and light. Keep the medication out of reach of children and do not use if the packaging is damaged.

Letrozole is taken orally, usually once daily, with or without food. Patients should swallow the tablet whole with a glass of water and follow any additional instructions from their healthcare provider regarding timing and concomitant medications.

Serious risks include significant bone loss leading to osteoporosis or fractures, severe liver injury, and cardiovascular events such as thromboembolism or myocardial infarction. Patients should report persistent bone pain, jaundice, unexplained swelling, or chest discomfort to their physician promptly.

Letrozole should not be used by premenopausal women, pregnant or breastfeeding individuals, patients with severe hepatic impairment, or those with known hypersensitivity to aromatase inhibitors. Contraindications also include patients receiving estrogen‑containing therapy for other indications.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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