Targeted failure of the week. Post No 154. Herceptin!!!

Believe it or not THE targeted drug herceptin is not very much targeted:

As many as one in 10 women taking the breast cancer drug trastuzumab (Herceptin) will experience some type of heart problem, according to new research.

http://www.webmd.com/breast-cancer/news/20140610/breast-cancer-drug-herceptin-linked-to-risk-of-heart-problems-study