Erleva 150mg Tablet is utilized in the treatment of non-small cell lung cancer and pancreatic cancer. Erleva 150mg Tablet should be taken on an empty stomach or should be taken one hour before or 2 hour after meal. You should continue to take it as long as your doctor advises it. The duration of treatment varies according to your needs and response to treatment. You should take it exactly as your doctor has advised. Taking it in the wrong way or taking too much can cause very serious side effects. It may take several weeks or months for you to see or feel the benefits but do not stop taking it unless your doctor tells you to.