Epirubicin is widely used in chemotherapy for treating various types of cancers, including breast cancer, stomach cancer, ovarian cancer, and lung cancer. It works by interfering with the DNA in cancer cells, preventing their growth and replication. This drug is often administered intravenously as part of combination therapy to enhance its effectiveness. It is particularly valued in breast cancer treatment, where it has shown significant success in reducing tumor size and improving patient outcomes. Epirubicin is also used in adjuvant therapy to eliminate any remaining cancer cells after primary treatments like surgery. Due to its potent nature, careful monitoring is required to manage potential side effects, such as cardiotoxicity and bone marrow suppression.