anolet 2.5mg tablet - Letrozole (2.5mg) medicine

Letrozole 2.5 mg Tablet: Complete Information

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🏭 Maneesh Pharmaceuticals Ltd 📦 Varies by brand 💊 Allopathy 📅 Updated: Oct 16, 2026
⚠️ Hepatotoxicity Risk 🤰 Pregnancy Category Letrozole is contraindicated in pregnancy. It may cause harm to the fetus. Women of childbearing potential should use effective contraception during treatment. 📋 Prescription Required 💊 Generic Available
Medically Reviewed
11 min read
Evidence: High
Reviewed by
SaathiMed Expert Panel | Oct 16, 2026
🩺
Medically Fact-Checked & Clinically Verified by SaathiMed Clinical Review Board
Clinical Reference Standards: CDSCO (Central Drugs Standard Control Organisation), Indian Pharmacopoeia (IP) & WHO | Last Updated: September 2026

When to Call Your Doctor IMMEDIATELY

  • Sudden chest pain or difficulty breathing
  • Severe headache with vision changes
  • Yellowing of skin or eyes
  • Dark urine or severe abdominal pain
  • Sudden weakness or numbness on one side of the body
  • Severe allergic reaction with swelling of face, lips, or throat
  • Unusual vaginal bleeding

If experiencing severe symptoms, call emergency services immediately.

What is anolet 2.5mg tablet used for?

Letrozole 2.5 mg is an oral aromatase inhibitor used to treat hormone receptor-positive breast cancer in postmenopausal women and to induce ovulation in infertility. It works by lowering estrogen levels in the body.

  • Generic Name: Letrozole
  • Manufacturer: Maneesh Pharmaceuticals Ltd
  • Form: Allopathy
  • Pregnancy Category: Consult doctor
  • Prescription Required: Yes

🇮🇳 anolet 2.5mg tablet के बारे में (Hindi Summary)

उपयोग: यह दवा मुख्य रूप से पोस्टमेनोपॉज़ल महिलाओं में हार्मोन रिसेप्टर-पॉज़िटिव ब्रेस्ट कैंसर के इलाज के लिए और बांझपन में ओव्यूलेशन को प्रेरित करने के लिए उपयोग की जाती है। यह शरीर में एस्ट्रोजन के स्तर को कम करके काम करती है।

साइड इफेक्ट्स: आम दुष्प्रभावों में गर्म चमक, जोड़ों में दर्द, थकान, सिरदर्द, मतली और वजन बढ़ना शामिल हैं। गंभीर दुष्प्रभावों में हड्डी का फ्रैक्चर, हृदय संबंधी समस्याएं और लीवर की समस्या हो सकती है। कोई भी असामान्य लक्षण दिखने पर तुरंत डॉक्टर से संपर्क करें।

सुरक्षा सलाह: इस दवा को डॉक्टर के बताए अनुसार ही लें। गर्भावस्था के दौरान इसका सेवन न करें। यदि आप गर्भवती हैं या गर्भधारण की योजना बना रही हैं तो डॉक्टर को बताएं। शराब से बचें। अन्य दवाओं के साथ इसका सेवन करने से पहले डॉक्टर से सलाह लें। नियमित जांच कराते रहें।

💡 Did You Know? India is the largest provider of generic medicines globally, supplying over 50% of global vaccine demand.

💊 anolet 2.5mg tablet Uses & Benefits

[{"condition":"Hormone receptor-positive breast cancer in postmenopausal women","description":"Used as adjuvant therapy to reduce the risk of recurrence and as first-line treatment for advanced disease.","evidence":"Well-established"},{"condition":"Ovulation induction in infertility","description":"Used to stimulate ovulation in women with polycystic ovary syndrome or other ovulatory disorders.","evidence":"Well-established"},{"condition":"Breast cancer prevention in high-risk postmenopausal women","description":"May be used to reduce the risk of developing breast cancer in women at high risk.","evidence":"Moderate"}]

Off-label uses: [{"condition":"Endometriosis","description":"Sometimes prescribed off-label to reduce estrogen levels and alleviate symptoms.","evidence":"Limited"},{"condition":"Uterine fibroids","description":"May be used off-label to shrink fibroids by lowering estrogen.","evidence":"Limited"}]

Primary treatment for: Hormone receptor-positive breast cancer

Also treats: Infertility due to ovulation disorders, Breast cancer prevention in high-risk women

📋 Drug Information

Generic Name(s)Letrozole
Brand NameAnolet
ManufacturerManeesh Pharmaceuticals Ltd
Packaging / FormVaries by brand (Allopathy)
Therapeutic ClassANTI NEOPLASTICS
Action ClassAromatase inhibitor
Route of AdministrationOral
StorageStore at room temperature between 15°C and 30°C (59°F to 86°F). Protect from moisture and light. Keep in the original container.
Shelf Life24 months from the date of manufacture.
WHO GuidelineNot established from the available information.
ICMR GuidelineNot established from the available information.

👨‍⚕️ Doctor's Practical Tips

Evidence-based practical advice from experienced clinicians

1
Take this medicine at the same time each day to maintain consistent blood levels.
2
If you experience joint pain, gentle exercise and warm compresses can help.
3
Ensure adequate calcium and vitamin D intake to protect your bones.
4
Report any unusual vaginal bleeding, chest pain, or shortness of breath immediately.
5
Use effective contraception while taking this medicine if you are of childbearing potential.
6
Avoid grapefruit and grapefruit juice as it may increase drug levels.
7
Keep all follow-up appointments for monitoring of liver function and bone density.

🔍 Is This Medicine Right for Your Symptom?

Educational reference. Always consult a doctor for diagnosis.

✅
Breast cancer
This medicine is commonly prescribed for hormone receptor-positive breast cancer.
Likely Use
✅
Infertility due to ovulation disorders
This medicine is used to induce ovulation.
Likely Use
❌
Fever
This medicine is not a primary fever reducer.
Not Primary

🔬 How This Medicine Works (Pharmacology)

Pharmacokinetics

AbsorptionLetrozole is rapidly and completely absorbed from the gastrointestinal tract after oral administration. The absolute bioavailability is approximately 99.9%. Food does not significantly affect the extent of absorption, but it may slightly delay the time to peak concentration.
DistributionLetrozole is widely distributed into body tissues. It is approximately 60% bound to plasma proteins, primarily albumin. The volume of distribution is about 1.9 L/kg.
Protein BindingApproximately 60% bound to plasma proteins, mainly albumin.
MetabolismLetrozole is extensively metabolized in the liver, primarily by cytochrome P450 enzymes CYP3A4 and CYP2A6, into a pharmacologically inactive carbinol metabolite. The metabolism is not saturable.
Half-LifeThe elimination half-life of letrozole is approximately 2 days (range 1.5 to 4 days).
ExcretionLetrozole is primarily excreted in the urine as glucuronide conjugates of the carbinol metabolite. About 90% of the dose is recovered in urine, and 4% in feces.
BioavailabilityThe absolute bioavailability of letrozole is approximately 99.9%.
Onset of ActionEstrogen suppression begins within hours of administration, but clinical effects such as tumor response may take several weeks.
Peak Plasma TimePeak plasma concentrations are reached approximately 1 to 2 hours after oral administration.
Duration of ActionThe estrogen-suppressing effect lasts for the duration of dosing, with a half-life of about 2 days. Clinical effects persist as long as the medicine is taken.

How It Works

This medicine is a potent and selective non-steroidal aromatase inhibitor. It works by binding reversibly to the aromatase enzyme, which is responsible for converting androgens (such as testosterone and androstenedione) into estrogens (such as estrone and estradiol). By inhibiting aromatase, this medicine significantly reduces circulating estrogen levels in postmenopausal women, where estrogen is primarily produced through peripheral conversion in adipose tissue and other sites. In breast cancer, many tumors are hormone receptor-positive and depend on estrogen for growth. By lowering estrogen, this medicine starves these cancer cells of their growth stimulus, leading to reduced tumor growth and improved survival. In fertility treatment, the reduction in estrogen feedback leads to increased secretion of follicle-stimulating hormone (FSH) from the pituitary, which stimulates ovarian follicles and induces ovulation.

Mechanism Steps

1
Binding to aromatase enzyme: This medicine binds reversibly to the heme iron of the aromatase enzyme, competing with natural substrates.
2
Inhibition of estrogen synthesis: By blocking aromatase, the conversion of androgens to estrogens is inhibited, leading to a significant drop in circulating estrogen levels.
3
Reduction in estrogen-dependent tumor growth: In hormone receptor-positive breast cancer, lower estrogen levels deprive tumor cells of growth signals, slowing tumor progression.
4
Increased gonadotropin release: In premenopausal women, reduced estrogen feedback increases FSH and LH secretion, promoting ovarian follicular development and ovulation.

💡 How to Take anolet 2.5mg tablet

Strength: Letrozole 2.5 mg immediate-release tablet.

1Take this medicine at the same time each day.
2Swallow the tablet whole with a glass of water.
3You can take it with or without food.
4If you take it for fertility, follow the specific schedule given by your doctor.
5Do not crush, chew, or break the tablet unless instructed.
6If you miss a dose, follow the missed dose instructions.

Dosage Information

Adult DosageThe usual adult dose for breast cancer is 2.5 mg once daily, with or without food. For ovulation induction, the dose is typically 2.5 mg once daily for 5 days, starting on day 3 to 5 of the menstrual cycle. Dose must be individualized by a qualified clinician based on indication, age, weight, renal and hepatic function.
Pediatric DosagePediatric dosing is not established from available information. Consult a pediatrician.
Elderly DosageNo dose adjustment is required for elderly patients based on age alone. However, elderly patients may be more sensitive to side effects; monitor closely.
Renal ImpairmentNo dose adjustment is needed for mild to moderate renal impairment. In severe renal impairment (creatinine clearance <10 mL/min), use with caution as letrozole has not been studied extensively.
Hepatic ImpairmentIn patients with mild to moderate hepatic impairment, no dose adjustment is needed. In severe hepatic impairment, dose reduction may be necessary; use with caution.
Maximum Daily DoseThe maximum recommended daily dose is 2.5 mg.

Dosage Timeline

🌅 Morning ❌ ☀️ Afternoon ❌ 🌆 Evening ❌ 🌙 Night ❌

🍽️ Food Timing Guide

With or without food
Can be taken with or without food
Food does not significantly affect absorption.
Grapefruit
Avoid
May increase drug levels by inhibiting CYP3A4.

⏰ What to Do If You Miss a Dose

📌 Less than 12 hours since missed dose
→ Take the missed dose as soon as you remember.
💡 Continue with the regular schedule.
📌 More than 12 hours since missed dose
→ Skip the missed dose.
💡 Do not double dose to catch up.

⚠️ Side Effects of anolet 2.5mg tablet

✅ Common Side Effects

Hot flashes (Very common (>10%))
Wear light clothing, avoid triggers like spicy food and caffeine. Consult doctor if severe.
Joint pain (Common (1-10%))
Gentle exercise, warm compresses, and over-the-counter pain relievers may help. Report persistent pain.
Fatigue (Common (1-10%))
Ensure adequate rest, maintain a balanced diet, and pace activities. Consult doctor if it interferes with daily life.
Nausea (Common (1-10%))
Take with food, eat small frequent meals. If persistent, consult doctor.
Headache (Common (1-10%))
Stay hydrated, rest in a quiet room. Use pain relievers only if approved by doctor.

🚨 Serious Side Effects

Bone fractures (Uncommon (0.1-1%))
Report any sudden bone pain or inability to bear weight. Ensure adequate calcium and vitamin D intake.
Cardiovascular events (e.g., chest pain, heart attack) (Uncommon (0.1-1%))
Seek immediate medical attention if you experience chest pain, shortness of breath, or palpitations.
Liver toxicity (Rare (<0.1%))
Report yellowing of skin or eyes, dark urine, or abdominal pain immediately.
Severe allergic reactions (Rare (<0.1%))
Seek emergency care if you develop rash, swelling of face/lips/throat, or difficulty breathing.

⚠️ Rare Side Effects

Stroke
Call emergency services if you experience sudden weakness, confusion, or difficulty speaking.
Pulmonary embolism
Seek immediate care for sudden shortness of breath, chest pain, or coughing up blood.
Ovarian hyperstimulation syndrome (in fertility use)
Report severe pelvic pain, bloating, or rapid weight gain to your fertility specialist.

Consult your doctor if you experience any unusual symptoms.

🔬 Drug Interactions

Drug Severity Effect
Tamoxifen Major
Estrogens Major
Rifampicin Moderate
Ketoconazole Moderate
Warfarin Minor

🚨 Major Interactions

  • Tamoxifen
  • Estrogen-containing products

⚡ Moderate Interactions

  • CYP3A4 inducers (e.g., rifampicin, phenytoin, carbamazepine)
  • CYP3A4 inhibitors (e.g., ketoconazole, clarithromycin)

🍷 Alcohol Interaction

Alcohol may increase the risk of liver problems and worsen side effects such as dizziness and fatigue. It is advisable to limit or avoid alcohol while taking this medicine.

🔎 Check Your Other Medicines

Educational tool. Always confirm with your doctor or pharmacist.

🛡️ Safety & Warnings

🚫 Contraindications

["Pregnancy","Breastfeeding","Premenopausal women (unless used for fertility)","Known hypersensitivity to letrozole or any excipient","Severe hepatic impairment"]

⚠️ Warnings & Precautions

["Use with caution in patients with hepatic impairment; dose reduction may be needed.","May cause dizziness and fatigue; avoid driving or operating machinery until you know how it affects you.","May reduce bone mineral density; consider calcium and vitamin D supplementation.","May increase cholesterol levels; monitor lipid profile.","Not for use in premenopausal women with breast cancer unless ovarian suppression is achieved.","May cause fetal harm; use effective contraception."]

🤱 Lactation Safety

It is not known whether letrozole is excreted in human milk. Because of the potential for serious adverse reactions in nursing infants, breastfeeding is not recommended during treatment.

💊 Overdose Management

There is limited experience with letrozole overdose. In case of suspected overdose, seek immediate medical attention. Treatment should be symptomatic and supportive. There is no specific antidote.

⏰ Missed Dose

If you miss a dose, take it as soon as you remember. If it is almost time for your next dose, skip the missed dose and continue with your regular schedule. Do not take a double dose to make up for a missed one.

Additional Safety Advice

General Safety

Take this medicine exactly as prescribed by your doctor. Do not change the dose or stop taking it without consulting your doctor. This medicine is not for use during pregnancy. If you are pregnant or planning to become pregnant, inform your doctor immediately. Use effective contraception while taking this medicine if you are of childbearing potential. Avoid alcohol as it may increase the risk of liver problems. Inform your doctor about all other medications, supplements, and herbal products you are taking. Regular monitoring of bone density, liver function, and cholesterol may be required. Do not drive or operate heavy machinery if you feel dizzy or fatigued. Store this medicine at room temperature away from moisture and heat. Keep out of reach of children.

👴 Special Considerations for Elderly

💡 For Patients Above 65

Elderly patients may be more susceptible to side effects such as bone loss and cardiovascular events. Regular monitoring is advised.

🤰 Pregnancy Planning (TTC)

Letrozole is contraindicated during pregnancy. If you are planning to become pregnant, consult your doctor to discuss alternative treatments. Use effective contraception while on letrozole.

🏥 Post-Surgery Considerations

Letrozole may be prescribed after breast cancer surgery. Follow your surgeon's and oncologist's instructions regarding when to start and any precautions.

🦷 Dental Procedures

Inform your dentist that you are taking letrozole. No specific precautions are usually needed, but maintain good oral hygiene.

💚 Lifestyle Tips for Better Results

🏃
Maintain a healthy weight to reduce joint stress.
🥗
Engage in regular low-impact exercise like walking or swimming.
😴
Practice good posture to alleviate back and joint pain.
💧
Include calcium-rich foods in your diet for bone health.
🧘
Get adequate sleep to manage fatigue.
🌞
Stay hydrated throughout the day.

🏋️ Exercise Considerations

If you experience joint pain or fatigue, modify your exercise routine. Low-impact activities are generally safe. Avoid high-impact exercises if you have bone pain or fractures.

🥗 Diet Recommendations

Include calcium and vitamin D rich foods like dairy, leafy greens, and fortified cereals.
Reduce processed food intake.
Stay well hydrated.
Avoid grapefruit and grapefruit juice.

💼 Impact on Daily Work & Life

Letrozole may cause dizziness and fatigue, which can affect your ability to drive or operate machinery. Avoid these activities until you know how the medicine affects you. Take breaks and manage stress.

🛑 When to Stop This Medicine

Do not stop taking letrozole without consulting your doctor. If you experience severe side effects, contact your doctor immediately. Your doctor will decide if dose adjustment or discontinuation is necessary.

📅 Long-Term Use Effects

Long-term use of letrozole may lead to decreased bone mineral density, increased risk of fractures, and cardiovascular events. Regular monitoring of bone density, lipid profile, and liver function is recommended. It is important to discuss with your doctor about calcium and vitamin D supplementation.

🌿 Non-Medicine Approaches

These can complement medicine but do not replace prescribed treatment.

Anastrozole

Another aromatase inhibitor used for breast cancer.

Evidence: Well-established
Tamoxifen

A selective estrogen receptor modulator used for breast cancer.

Evidence: Well-established
Clomiphene citrate

Another medication for ovulation induction.

Evidence: Well-established

💉 Vaccination Considerations

💉 If You're Getting Vaccinated

No specific vaccine interactions are known. However, consult your doctor before receiving any live vaccines while on letrozole.

📦 Storage Guide

✅ DO

Store at room temperature (15-30°C)

❌ DON'T

Do not refrigerate unless specified

✅ DO

Keep in original container

❌ DON'T

Do not transfer to unmarked containers

✅ DO

Keep away from direct sunlight

❌ DON'T

Do not store in bathroom cabinet

✈️ Traveling with This Medicine

Carry your letrozole tablets in their original packaging with a copy of your prescription. Keep them in your carry-on luggage to avoid loss. Store at room temperature and protect from extreme heat or moisture. If traveling across time zones, maintain your dosing schedule as close to usual as possible. Check customs regulations for carrying prescription medications.

💰 Cost Analysis & Savings

👥 Real Patient Stories

Educational, anonymized scenarios. Individual results may vary.

👤 A 58-year-old postmenopausal woman with early-stage breast cancer
She was prescribed letrozole 2.5 mg daily after surgery. She experienced mild hot flashes and joint stiffness initially, but these improved over a few weeks. She remained consistent with her medication and regular follow-ups. After two years, she remains cancer-free and leads an active life.
💡 Lesson: Consistency with letrozole and regular monitoring can lead to good outcomes in breast cancer treatment.
👤 A 32-year-old woman struggling with infertility due to PCOS
She was prescribed letrozole 2.5 mg for 5 days to induce ovulation. She conceived after the second cycle. She reported mild nausea and fatigue but no serious side effects. She emphasized the importance of following the exact schedule given by her fertility specialist.
💡 Lesson: Letrozole is effective for ovulation induction when taken as directed, and patience is key.

💬 Questions Patients Often Ask

Q: How long does letrozole take to work?

A: For breast cancer, it may take several weeks to months to see full effects. For ovulation induction, it usually works within one cycle.

Q: Can letrozole cause weight gain?

A: Weight gain is a possible side effect but not everyone experiences it. Maintaining a healthy diet and exercise can help.

Q: Is letrozole safe during pregnancy?

A: No, letrozole is contraindicated during pregnancy as it can harm the fetus.

🤔 Common Patient Concerns

💭 These are the concerns patients most commonly raise

  • Can I take letrozole long-term?
  • Will letrozole affect my bone health?
  • Can I drive after taking letrozole?
  • Does letrozole interact with my blood pressure medicine?
  • What if I miss a dose?
  • Can I drink alcohol while taking letrozole?

🔄 Substitutes for anolet 2.5mg tablet

View All

Alternative brands with exact same active ingredient:

Medical Note: Always consult your doctor before switching medications.

🛑 Myths vs. Facts

  • Myth: Letrozole is a hormone replacement therapy.
    Fact: Letrozole is an aromatase inhibitor that lowers estrogen levels, not a hormone replacement.
  • Myth: Letrozole can be taken during pregnancy.
    Fact: Letrozole is contraindicated in pregnancy as it can harm the fetus.
  • Myth: Letrozole is safe for premenopausal women with breast cancer.
    Fact: Letrozole is generally not used in premenopausal women with breast cancer unless ovarian suppression is achieved.

🔄 Alternative Options

Generic Alternatives

  • Letrozole 2.5 mg tablet (generic)

Brand Alternatives

  • Femara
  • Letroz
  • Ovaril

📊 Comparison with Similar Medicines

[{"medicine":"Letrozole","class":"Aromatase inhibitor","use":"Breast cancer, ovulation induction","half_life":"2 days"},{"medicine":"Anastrozole","class":"Aromatase inhibitor","use":"Breast cancer","half_life":"40-50 hours"},{"medicine":"Tamoxifen","class":"Selective estrogen receptor modulator","use":"Breast cancer","half_life":"5-7 days"}]

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