Tykerb 250 Tablet is anti-tumor medicine which indicated for breast cancer & solid tumor treatment. It comprises lapatinib as active compound with molecular formula C29H26ClFN4O4S with molar mass of 581.058 g/mol. This tablet shows excellent protein binding ability of more than 99% with elimination half life of about 24 hours with repeated dose. It works by inhibiting tyrosine kinase activity & functions of EGFR & HER2/neu for exerting curative effects. Tykerb 250 Tablet is highly effective in nature and is excreted in feces after hepatic metabolism.