LEROZOL 2.5MG

# Letrozole 2.5 mg ## SHORT DESCRIPTION Letrozole 2.5 mg is an **aromatase inhibitor** that reduces the production of estrogen in the body. It is primarily used as a **hormonal treatment for certain types of hormone receptor-positive breast cancer**, particularly in postmenopausal women. Letrozole may also be used in certain fertility-treatment protocols to stimulate ovulation. However, fertility use is **off-label in many countries** and should only be undertaken under specialist medical supervision. ## KEY BENEFITS * Helps reduce estrogen production in the body * Used in the treatment of certain **hormone receptor-positive breast cancers** * May help reduce the risk of breast cancer recurrence in appropriate patients * Can be used as adjuvant hormonal therapy after primary breast cancer treatment * May be used in advanced or metastatic hormone-sensitive breast cancer * Can stimulate ovulation when used under specialist fertility supervision ## USES / INDICATIONS Letrozole 2.5 mg may be prescribed for: * **Hormone receptor-positive breast cancer in postmenopausal women** * Adjuvant treatment after surgery for early-stage breast cancer * Extended adjuvant treatment after previous tamoxifen therapy in selected patients * Treatment of locally advanced or metastatic hormone-sensitive breast cancer * Certain fertility-treatment protocols to induce ovulation, under specialist supervision The appropriate indication depends on the patient's condition, menopausal status and treatment plan. ## HOW IT WORKS Letrozole is a **selective aromatase inhibitor**. Aromatase is an enzyme involved in the production of estrogen. Letrozole inhibits aromatase, significantly reducing estrogen production, particularly in postmenopausal women. Lower estrogen levels can: * Slow the growth of estrogen-dependent breast cancer cells * Help prevent recurrence of certain breast cancers * Support hormonal treatment strategies prescribed by an oncologist In fertility treatment, temporary reduction in estrogen provides feedback to the brain that can increase follicle-stimulating hormone (FSH), helping stimulate ovarian follicle development and ovulation. ## DOSAGE & ADMINISTRATION ### For Breast Cancer The commonly recommended adult dose is: **Letrozole 2.5 mg once daily** * Take the tablet at approximately the same time each day. * It can generally be taken **with or without food**. * Swallow the tablet with water. * Treatment duration depends on the type and stage of breast cancer and the treatment plan established by the oncologist. * Do not stop treatment without consulting your doctor. ### For Fertility Treatment Letrozole may be prescribed for ovulation induction using a **different short-course regimen**, often beginning early in the menstrual cycle. The exact dose and treatment days must be determined by a fertility specialist based on the individual's menstrual cycle, ovarian response and treatment plan. **Do not use the breast-cancer dosing schedule for fertility treatment unless specifically prescribed.** ### Missed Dose Take the missed dose when remembered unless it is nearly time for the next dose. Do not take two doses together to compensate for a missed dose. ## SIDE EFFECTS Common side effects may include: * Hot flashes * Night sweats * Joint pain * Muscle pain * Bone or back pain * Fatigue * Headache * Dizziness * Nausea * Increased sweating * Mood changes * Difficulty sleeping Long-term treatment may reduce bone mineral density and increase the risk of **osteoporosis and fractures**. ### Serious Side Effects Seek medical attention for: * Severe or persistent bone or joint pain * Significant weakness or fatigue * Signs of a serious allergic reaction * Severe chest pain or breathing difficulty * Symptoms of a blood clot * Significant vision changes * Severe liver-related symptoms such as yellowing of the skin or eyes ## PRECAUTIONS & WARNINGS * Letrozole is primarily intended for **postmenopausal women when used for breast cancer treatment**. * It should not be used during pregnancy because it can harm the developing fetus. * Pregnancy should be excluded before starting letrozole when pregnancy is possible. * If used for fertility treatment, pregnancy may occur after treatment; follow your fertility specialist's instructions. * Let your doctor know if you have osteoporosis or a history of fractures. * Long-term treatment can reduce bone density. * Your doctor may recommend monitoring **bone mineral density** during treatment. * Adequate calcium and vitamin D intake may be recommended depending on individual needs. * Tell your doctor if you have liver or kidney disease. * Letrozole can cause dizziness or fatigue; use caution when driving or operating machinery if affected. * Report persistent or severe joint, muscle or bone pain. * Do not use letrozole for fertility purposes without appropriate medical supervision. ## DRUG INTERACTIONS Letrozole may interact with certain medicines, including: * **Tamoxifen** — may reduce the effectiveness or alter the pharmacokinetics of letrozole when used together. * **Estrogen-containing medicines** — may counteract the estrogen-lowering effect of letrozole. * Hormonal contraceptives containing estrogen * Other hormone replacement therapies * Certain medicines that affect liver enzymes Tell your doctor or pharmacist about all prescription medicines, OTC medicines, vitamins and herbal supplements you use. ## STORAGE INFORMATION * Store at room temperature according to the manufacturer's instructions. * Keep tablets in their original packaging. * Protect from excessive heat and moisture. * Keep the medicine away from direct sunlight. * Keep out of reach of children. * Do not use after the expiry date. * Do not use tablets from damaged or improperly stored packaging. ## PRESCRIPTION STATUS **Prescription medicine.** Letrozole 2.5 mg should be used under the supervision of a qualified healthcare professional, particularly when prescribed for cancer treatment or fertility treatment. ## GENUINE MEDICINE ASSURANCE For safe and genuine Letrozole 2.5 mg: * Purchase from a licensed and reputable pharmacy. * Check the medicine name and strength. * Verify the manufacturer's details. * Check the batch number and expiry date. * Ensure the packaging and seal are intact. * Do not use tablets from damaged or suspicious packaging. * Purchase prescription medicines only from authorized sources. * Store the medicine according to the manufacturer's instructions. * Consult a pharmacist if you have concerns about product authenticity. ## FAQ ### What is Letrozole 2.5 mg used for? Letrozole 2.5 mg is mainly used to treat **hormone receptor-positive breast cancer** in postmenopausal women. It can also be prescribed for ovulation induction in certain fertility treatments. ### Is Letrozole a chemotherapy medicine? No. Letrozole is a **hormonal therapy**, not traditional chemotherapy. It belongs to a group of medicines called aromatase inhibitors. ### How does Letrozole work? Letrozole blocks the aromatase enzyme, reducing estrogen production. Lower estrogen levels can slow or stop the growth of certain estrogen-dependent breast cancer cells. ### Is Letrozole used for breast cancer? Yes. Letrozole is commonly used to treat certain **estrogen receptor-positive breast cancers**, particularly in postmenopausal women. ### Can Letrozole be used to prevent breast cancer recurrence? Yes. In selected patients, letrozole may be prescribed as **adjuvant or extended adjuvant hormonal therapy** to reduce the risk of recurrence. ### Can Letrozole be used for fertility? Yes. Letrozole is widely used by fertility specialists to induce ovulation. This use may be **off-label depending on the country** and requires appropriate medical supervision. ### How is Letrozole taken for fertility treatment? Fertility regimens are usually short courses taken during the early part of the menstrual cycle. The exact dose and days of treatment vary, so follow your fertility specialist's instructions. ### Can Letrozole cause ovulation? Yes. In fertility treatment, letrozole can stimulate the hormonal signals that encourage development of an ovarian follicle and ovulation. ### Can Letrozole be taken during pregnancy? No. Letrozole should not be used during pregnancy because it can potentially harm the developing fetus. Consult your doctor if pregnancy occurs during treatment. ### Does Letrozole cause infertility? Letrozole is not generally considered to cause permanent infertility. In fact, it is used therapeutically to induce ovulation in people who are having difficulty ovulating. Its effects and suitability depend on the individual's medical circumstances. ### What are the common side effects of Letrozole? Common side effects include **hot flashes, joint pain, muscle pain, fatigue, headache, dizziness, nausea and increased sweating**. ### Does Letrozole cause joint pain? Yes. **Joint and muscle pain** are common with aromatase inhibitor treatment. Tell your doctor if the pain is severe or persistent. ### Can Letrozole cause bone loss? Yes. Because letrozole lowers estrogen levels, long-term treatment can decrease bone mineral density and increase the risk of osteoporosis and fractures. ### Should calcium and vitamin D be taken with Letrozole? Some patients may benefit from adequate calcium and vitamin D intake, particularly when there is a risk of bone loss. Ask your doctor whether supplementation and bone-density monitoring are appropriate for you. ### Can Letrozole be taken with tamoxifen? Letrozole and tamoxifen are both hormonal treatments, but they are generally used in different treatment strategies. Do not combine them unless specifically prescribed by your oncologist. ### Can Letrozole be taken with estrogen? Estrogen-containing medicines may counteract the effect of letrozole. Discuss hormone replacement therapy and other estrogen-containing medicines with your doctor. ### Does Letrozole cause hot flashes? Yes. Hot flashes and night sweats are common because letrozole significantly reduces estrogen levels. ### Can Letrozole cause dizziness? Yes. Dizziness can occur. Avoid driving or operating machinery if you feel dizzy or otherwise impaired. ### What happens if I miss a dose of Letrozole? Take it when remembered unless it is nearly time for the next dose. Do not double the next dose. ### How long do I need to take Letrozole for breast cancer? Treatment duration varies according to the cancer type, stage, previous treatments and individual risk. Your oncologist will determine the appropriate duration. ### Can Letrozole be stopped suddenly? Do not stop long-term letrozole treatment without discussing it with your oncologist. Your treatment plan is designed around continuous hormonal suppression. ### How should Letrozole 2.5 mg be stored? Store the tablets according to the manufacturer's instructions, generally at room temperature and away from excessive heat, moisture and direct sunlight. Keep them out of reach of children. ## MEDICAL DISCLAIMER This information is provided for educational and informational purposes only and does not replace professional medical advice, diagnosis or treatment. **Letrozole 2.5 mg is a prescription hormonal medicine that should be used only under the supervision of a qualified healthcare professional.** Its dose and duration vary according to the medical condition. Letrozole can cause significant hormonal and bone-related effects and must not be used during pregnancy. Patients receiving long-term breast-cancer treatment may require monitoring of bone health and other clinical parameters. Fertility use requires specialist supervision. Always follow the prescribed regimen and the specific product information provided by your healthcare professional.