Letroz 2.5mg Tablet (Letrozole)
Letroz 2.5mg Tablet (Letrozole)

Letroz 2.5mg Tablet (Letrozole)

prescriptionImage Prescription Required

Manufactured By

Sun pharma

Pack Of

5

Salt Composition

Letrozole

Storage

Store below 30°C

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Overview

Letroz 2.5mg Tablet contains letrozole, an oral aromatase inhibitor used as endocrine therapy for hormone-receptor-positive breast cancer, mainly in postmenopausal women. Aromatase is an enzyme involved in producing estrogen after menopause. By inhibiting this enzyme, the letrozole 2.5mg tablet lowers estrogen levels and can slow the growth of breast cancers that depend on estrogen signaling.

Letrozole tablets may be used after surgery, as extended adjuvant treatment, before surgery in selected patients, or for advanced/metastatic disease depending on the clinical setting. Letroz 2.5mg Tablet is a prescription medicine and should be used under the supervision of an oncologist. Long-term treatment can affect bone density and cholesterol, so appropriate monitoring and supportive care are important.

Quick Product Facts

FieldPublication wording
BrandLetroz
Active ingredientLetrozole
Strength / presentation2.5 mg
Medicine classAromatase inhibitor / endocrine therapy
Manufacturer / marketerSun pharma
FormTablet
Pack5 x 5 tablets (25 tablets)
PrescriptionYes

Uses and Indications

Letrozole tablets are used for hormone-receptor-positive breast cancer in postmenopausal patients. It may be prescribed as adjuvant endocrine therapy after surgery, including after prior tamoxifen; as extended adjuvant therapy; for locally advanced or metastatic hormone-sensitive breast cancer; and, in selected patients, before surgery to reduce tumor size.

Treatment choice depends on menopausal status, hormone-receptor results, cancer stage, previous endocrine therapy, recurrence risk, and tolerance. Letrozole 2.5mg tablet is not a general treatment for every type of breast cancer. Premenopausal patients may require ovarian suppression if an aromatase inhibitor is used as part of their treatment strategy.

How Letroz 2.5mg Tablet Works

Letrozole 2.5mg tablet is a non-steroidal aromatase inhibitor. In postmenopausal patients, aromatase converts adrenal androgen into estrogen in peripheral tissues. Letrozole tablets inhibit this conversion and markedly lower circulating estrogen levels. Hormone-receptor-positive breast cancers may rely on estrogen signaling for growth, so reducing estrogen can slow tumor-cell proliferation and reduce recurrence risk. The same reduction in estrogen contributes to adverse effects such as hot flushes, joint symptoms, and loss of bone mineral density.

Clinical Evidence for Letroz 2.5mg Tablet

Evidence context: The studies below are pivotal or widely cited evidence supporting the letrozole 2.5mg tablet in major treatment settings. Trial results should not be interpreted as a guarantee of benefit for an individual patient, and exact eligibility must match the current approved indication and oncology guideline.

StudyWhy it matters
BIG 1-98Established letrozole as an effective adjuvant endocrine therapy option in postmenopausal hormone-receptor-positive early breast cancer.
MA.17Supported extended adjuvant letrozole tablets after prior tamoxifen in appropriate postmenopausal patients.

Side Effects of Letroz 2.5mg Tablet

Letroz 2.5mg tablets may cause side effects, and their frequency varies by indication, dose, combination regimen, and patient population. The list below highlights clinically important effects rather than assigning a single percentage across different trials.

Common side effects

  • Hot flushes
  • Joint or muscle pain
  • Fatigue
  • Increased sweating
  • Headache
  • Nausea
  • Bone loss / osteoporosis over time
  • Increased cholesterol

Serious side effects 

  • Osteoporosis-related fractures
  • Cardiovascular events in susceptible patients
  • Severe liver or allergic reactions (rare)

Critical Safety Warning

Important long-term risks include reduced bone mineral density/osteoporosis and fractures, hypercholesterolemia, and cardiovascular risk. Letrozole tablets are contraindicated in pregnancy because suppression of estrogen can harm the developing fetus.

Letroz 2.5mg Tablet Dosage and How To Take It

The standard labeled dose for letrozole 2.5mg tablets in breast cancer is 2.5 mg orally once daily, with or without food. Treatment duration depends on the setting: adjuvant and extended-adjuvant therapy may continue for years, while advanced disease treatment generally continues while benefit persists and toxicity is acceptable. Pre-menopausal patients require specialist assessment and, when appropriate, ovarian suppression if an aromatase inhibitor is used.

Administration guidance: Take the Letroz 2.5mg tablet exactly as prescribed, usually once daily. Swallow the tablet with water and take it at approximately the same time each day. It can generally be taken with or without food. Continue treatment for the duration recommended by your oncologist, which may be several years in adjuvant breast cancer therapy. Do not stop because you feel well; endocrine therapy is intended to reduce recurrence risk or control hormone-sensitive disease over time. Your doctor may monitor bone mineral density, cholesterol, and other health factors during long-term therapy. Calcium, vitamin D, or bone-protective treatment may be recommended for some patients based on individual risk.

Letroz 2.5mg Tablet Missed Dose

Take a missed dose when remembered unless it is close to the next dose. Do not take two doses together. Resume the regular once-daily schedule.

Safety Advice for Letroz 2.5mg Tablet

CategoryStatusGuidance
PregnancyAvoidContraindicated in pregnancy because fetal harm can occur.
BreastfeedingAvoidDo not breastfeed during therapy; follow the current label for any post-treatment interval.
Bone healthMonitorAssess fracture risk and bone mineral density; calcium/vitamin D or antiresorptive treatment may be appropriate.
LipidsMonitorCholesterol may increase; check according to clinical risk.
LiverCautionSevere hepatic impairment may alter exposure and requires specialist dosing guidance.
DrivingCautionAvoid driving if dizziness, somnolence, or fatigue occurs.

Monitoring During Letroz 2.5mg Tablet Treatment

Assess bone health and fracture risk at baseline and periodically during long-term therapy. Monitor cholesterol according to clinical risk. Consider liver function and cardiovascular risk factors. Evaluate persistent musculoskeletal symptoms because they can affect adherence.

Practical monitoring checklist

  • Bone mineral density / fracture risk
  • Lipids and cardiovascular risk factors as clinically indicated

Letroz 2.5mg Tablet Fact Box

ParameterVerified / publication wording
GenericLetrozole
BrandLetroz
Manufacturer / marketerSun pharma
Strength / presentation2.5 mg
Drug classAromatase inhibitor / endocrine therapy
FormTablet
Mechanism / targetLetrozole is a non-steroidal aromatase inhibitor.
Main indication contextLetrozole tablets are used for hormone-receptor-positive breast cancer in postmenopausal patients. It may be prescribed as adjuvant endocrine therapy after surgery.
Biomarker / selectionHormone receptor (ER/PR) positivity; menopausal status
AdministrationOral
Major warningBone loss/osteoporosis, embryo-fetal toxicity, and cardiovascular risk in susceptible patients
Pack5 x 5 tablets (25 tablets)
StorageStore below 30°C
Prescription requiredYes
Key evidenceBIG 1-98, MA.17

Letroz 2.5mg Tablet Drug Interactions

Drug / ClassRiskWhat To Do
TamoxifenCan reduce letrozole tablet concentrationsConcurrent use is generally avoided unless specifically directed.
Estrogen-containing therapyCan oppose the aromatase-inhibitor effectAvoid unless the specialist has a specific reason.
CYP2A6/CYP2C19 interacting medicinesMay alter letrozole 2.5mg metabolism.Review clinically significant co-medications with the prescriber.

FAQs About Letroz 2.5mg Tablet

What is the Letroz 2.5mg tablet used for?

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Letroz 2.5mg Tablet contains letrozole. Its approved uses depend on the cancer type, disease stage, biomarkers where relevant, previous treatment, and the current product label. The oncologist determines whether this medicine fits the treatment plan.

Is Letroz 2.5mg tablet for chemotherapy?

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This is not traditional cytotoxic chemotherapy; it is a targeted anticancer medicine.

Can the dose be decided from the tablet/capsule/vial strength?

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No. The strength printed on the pack is not necessarily the patient dose. Dosing may depend on indication, body size, kidney/liver function, treatment cycle, combination regimen, and toxicity.

What should I do if I develop a fever during letrozole tablet treatment?

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Contact the oncology team urgently, especially with medicines that lower white blood cells. Fever during neutropenia can indicate a serious infection requiring rapid assessment.

Can I stop the letrozole 2.5mg treatment if side effects occur?

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Do not stop or reduce treatment on your own. Many oncology medicines have structured interruption and dose-reduction rules that allow toxicity to be managed safely.

Can I take supplements or herbal medicines with this treatment?

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Only after discussing them with the oncology team. Herbal products and OTC medicines can alter drug levels, bleeding risk, liver function, or treatment toxicity.

Can premenopausal patients take the letrozole 2.5mg tablet?

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It can be used in selected premenopausal patients only with appropriate ovarian suppression under specialist care; treatment choice depends on the breast-cancer setting.

Where can I confirm Letroz tablet availability?

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Current stock and prescription fulfillment can be confirmed by visiting our website. Availability may vary by location, so it is advised to first check the stock before placing an order.

References

Marketer Details

Sun pharma

Author Details

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Written By:

Nonish Sharma

I am a medical content writer with a strong academic background in life sciences, holding an M.Sc. in Biotechnology... Read More


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Reviewed By:

Vaibhav Shakya

Dr. Vaibhav Shakya, MD, is a Medical reviewer and medicine expert at Globans Pharma, with more than 9 years of experienc... Read More

Last Updated: 19 Oct 2026 | 02:30 pm (IST)

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