Lapatinib is an anticancer medication that is also known by the brand name Tykerb. It is used for the treatment of breast cancer and it is a member of 4-anilinoquinazoline. The medication is a kinase inhibitor and it blocks the functioning of both epidermal growth factor receptor and HER-2. Lapatinib showcases antineoplastic properties as it stops the growth and spreading of cancerous cells. Some of the side effects of Lapatinib 250mg tablet are such as – nausea, fatigue, constipation, weight gain, irregular heart rate, loss of appetite and mucosal inflammation. For more information about these tablets refer to our website.