https://www.genuinedrugs123.com/24-Anti-Cancer-Drugs-Generic-Gefitinib-Brand-Iressa.aspx - Iressa is a prescription medication used in the treatment of lung cancer. The cost of Iressa can vary depending on several factors such as location, dosage, and insurance coverage. It is advisable to consult with a healthcare professional or check with local pharmacies to get accurate pricing information for Iressa.