Sally....great job. I would just like to add that the epidermal growth factor receptor (EGFR) basically is a one of several proteins, which can multiply and become cancerous. Tarceva attacks this process. Avastin, (Bevacizumab,)monoclonal antibody, and sorafenib (Nexavar,) cetuximab (Erbitux) also hinder the prolifirtation of tumor cells. It is also called "Targeted Therapy."
Hugs and love,
THIS INFORMATION IS NOT INTENDED NOR IMPLIED TO BE A SUBSTITUTE FOR PROFESSIONAL MEDICAL ADVICE. YOU SHOULD ALWAYS SEEK THE ADVICE OF YOUR PHYSICIAN OR OTHER QUALIFIED HEALTH CARE PROVIDER