Erlotinib medication is used in the treatment of non-small cell lung cancer and pancreatic cancer. It is sold under the brand name Tarceva. It is designed to block the cancer cells and stop them from spreading. Dosage should be taken as prescribed by the doctor. Do not overdose on the medicine. This medication is not prescribed for the pregnant patient and also when breastfeeding. Tell your doctor the complete medical history or if you are allergic to it. may vary in the market from brand to brand. The estimated cost is around ₹ 3000.79 to ₹ 25000 for 30 tablets.