You may have side effects from these drugs. Here’s a list of common side effects from Iressa (gefitinib). They are listed from the most to the least common.
Rash
Blemishes on the skin or pimples
Loss of strength
Blisters on the skin
Here are some common side effects from Tarceva (erolotinib), listed from the most to the least common.
Rash on face, neck, chest, back, and arms
Diarrhea
Mild headache
Sore mouth