[at Motley Fool] – Pfizer is working on an experimental drug for breast cancer and expanding use of a pneumonia vaccine to offset losses from patent expirations. Read more on … [visit site . . . → Read More: Stock Update: Pfizer Inc (NYSE:PFE) – Will These Two Drugs Turn Around Losses at Pfizer? Similar Articles: Company Update: Pfizer Inc (NYSE:PFE) – Pfizer’s new breast cancer drug succeeds in trial Pfizer Vs. Novartis: A New Era In Breast Cancer Treatment – Pfizer Inc. (NYSE:PFE) Pfizer 3rd-qtr profit beats estimates; oncology drugs shine – Pfizer Inc. (NYSE:PFE)