Lapatinib

Lapatinib is a targeted cancer medication used primarily to treat certain breast cancers that overexpress specific proteins called HER2 and EGFR. These proteins promote cancer cell growth. Lapatinib works by blocking these proteins, preventing the cancer cells from multiplying. It is taken orally as a pill and is often used when previous treatments, like chemotherapy, haven't fully worked. By targeting the molecules responsible for tumor growth, lapatinib helps slow or stop the progression of cancer, offering a targeted approach aimed at improving treatment outcomes.