Fertolet Tablet contains Letrozole 2.5mg, a non-steroidal aromatase inhibitor primarily used to treat hormone receptor-positive breast cancer in postmenopausal women by reducing estrogen production. It is also commonly prescribed off-label to induce ovulation in women experiencing infertility due to anovulation or polycystic ovary syndrome (PCOS). Letrozole works by inhibiting the aromatase enzyme, which converts androgens into estrogens, thereby lowering estrogen levels and stimulating the release of follicle-stimulating hormone (FSH) to promote ovulation. Fertolet should be taken exactly as prescribed by a healthcare professional, usually once daily for a specified number of days early in the menstrual cycle when used for ovulation induction. Common side effects may include hot flashes, fatigue, dizziness, headache, and joint pain, though most patients tolerate the medication well. It is important to inform your doctor about any pre-existing conditions, allergies, or concurrent medications to avoid potential interactions. Fertolet is contraindicated in pregnancy and breastfeeding due to potential harm to the fetus or infant. Regular monitoring and follow-up with your healthcare provider are essential to ensure safe and effective treatment outcomes when using Fertolet Tablet.