Lapatinib

Lapatinib is used in the treatment of breast cancer.

Lapatinib is an anti-cancer medication. This works against the HER2 (human epidermal growth factor receptor protein) receptors and EGFRs (epidermal growth factor receptor) which are responsible for the over-proliferation of cells. This is how it inhibits the growth of cancerous cells causing downstream signaling pathways.

Back pain, Cough, Diarrhea, Fatigue, Headache, Insomnia (difficulty in sleeping), Nausea, Rash, Stomatitis (Inflammation of the mouth), Vomiting, Weakness, Breathlessness, Decreased appetite, Dry skin, Hair loss, Itching, Nail disorder, Nosebleeds, Dyspepsia, Palmar-plantar erythrodysesthesia syndrome, Pain in extremity, Paronychia, Increased alanine aminotransferase, Increased aspartate aminotransferase