Pfizer boosts cancer drug roster with $14 billion Medivation deal

Pfizer approaches Medivation about potential takeover

Pfizer and Allergan scrap $160 billion "inversion" deal

Pfizer, Allergan to mutually terminate merger on Wednesday morning, source says

Pfizer-Allergan $160 bn deal: Interesting facts and outcomes

Pfizer to buy Allergan in $160 bn deal to create world's biggest drugmaker

Investors seek protection against healthcare stock decline

U.S. multinationals hit hard by strong dollar, to bleed further into 2015

Pfizer, Ranbaxy win dismissal of lawsuit over generic Lipitor