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

Letrozole Amarox

Active Ingredient:
Letrozole
Origin:
EU

Letrozole Amarox (Letrozole)

Letrozole, the active ingredient in Letrozole Amarox, is an aromatase inhibitor presented as an oral tablet for oral use. It is used to treat estrogen receptor‑positive breast cancer in postmenopausal women.
GNH India supplies Letrozole Amarox as a licensed, GDP‑compliant international pharmaceutical supplier serving oncology centres worldwide.

Manufacturer / TM Owner

Amarox Limited

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Indications & Clinical Uses

Letrozole Amarox is an aromatase inhibitor indicated for conditions within the hormone‑dependent breast cancer pathway.

  • Estrogen receptor‑positive breast cancer (postmenopausal): reduces tumor growth by lowering systemic estrogen levels.
  • Adjuvant therapy after surgery: helps prevent disease recurrence in eligible patients.
  • Metastatic breast cancer (postmenopausal): slows disease progression and may improve survival.

How It Works

  • Letrozole reversibly binds to the aromatase enzyme, inhibiting the conversion of androgens to estrogens. By decreasing peripheral estrogen synthesis, it lowers circulating estrogen concentrations, thereby limiting the hormonal stimulation of estrogen‑dependent tumor cells.

Side Effects

Adverse reactions may occur with Letrozole Amarox use.

Common Side Effects

  • Hot flashes: transient episodes of warmth and sweating.
  • Joint pain: mild to moderate arthralgia.
  • Fatigue: general feeling of tiredness.
  • Nausea: occasional upset stomach.

Serious or Rare Side Effects

  • Severe liver injury: signs of hepatitis or jaundice.
  • Bone fracture: increased risk due to reduced estrogen.
  • Pulmonary embolism: sudden shortness of breath.
  • Allergic reaction: rash, swelling, or anaphylaxis.

Precautions & Warnings

Before initiating therapy, clinicians should evaluate patient‑specific risk factors.

  • Monitor bone health: assess osteoporosis risk and consider calcium/vitamin D supplementation.
  • Assess liver function: periodic liver enzyme testing is recommended.
  • Check cardiovascular status: be aware of potential thromboembolic events.
  • Avoid use in pregnancy: contraindicated due to teratogenic potential.
  • Store at ambient temperature: keep in the original pack, protect from moisture.

Avoid Interactions

Letrozole may interact with several concomitant medications.

Major Interactions (Avoid)

  • Tamoxifen: concurrent use reduces the efficacy of both agents.
  • Strong CYP2C19 inhibitors (e.g., fluconazole): may increase letrozole plasma concentrations.
  • Estrogen‑containing hormone therapy: antagonistic effect diminishes therapeutic benefit.

Moderate Interactions (Monitor Closely)

  • Warfarin: letrozole may alter anticoagulant effect; monitor INR.
  • Statins: potential impact on lipid profile; observe cholesterol levels.
  • SSRIs (e.g., fluoxetine): may increase risk of QT prolongation.

Frequently Asked Questions

Letrozole Amarox is prescribed for the treatment of estrogen receptor‑positive breast cancer in postmenopausal women. It is used in both early‑stage (adjuvant) and advanced (metastatic) settings to reduce estrogen‑driven tumor growth.

Letrozole blocks the aromatase enzyme, which converts androgens into estrogen. By inhibiting this conversion, systemic estrogen levels fall, depriving hormone‑sensitive breast cancer cells of the growth signal they require.

The dosage of Letrozole Amarox is determined by the prescribing clinician based on the patient’s clinical condition, renal and hepatic function, and treatment setting. The prescriber will specify the exact regimen on the prescription.

Letrozole is contraindicated during pregnancy because it can cause fetal harm. Women of child‑bearing potential should use effective contraception. Safety in breastfeeding has not been established, and breastfeeding is generally discouraged while on therapy.

To order, submit an enquiry on the product page at gnhindia.com, indicating 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, anastrozole, and exemestane are all aromatase inhibitors. Letrozole is often considered the most potent in reducing estrogen levels, which may translate into slightly higher response rates in some studies, though individual patient tolerance and physician preference guide selection.

Letrozole Amarox tablets should be stored at ambient temperature, below 25 °C, in the original container to protect from moisture and light. Keep out of reach of children and do not use after the expiry date.

Letrozole Amarox is taken orally, usually once daily, with or without food, as directed by the prescribing healthcare professional. Swallow the tablet whole with water; do not crush or chew unless specifically instructed.

Serious risks include severe liver injury, bone fractures due to decreased bone mineral density, pulmonary embolism, and rare allergic reactions such as anaphylaxis. Patients should report any signs of jaundice, sudden shortness of breath, severe bone pain, or rash to their physician promptly.

Letrozole is not recommended for premenopausal women, pregnant or nursing individuals, patients with known hypersensitivity to letrozole or its excipients, and those with severe hepatic impairment. Clinicians should also exercise caution in patients with a history of cardiovascular events.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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