Pfizer has clinched the purchase of US cancer drug company Medivation in a deal valued at about $14bn, (€12.4bn) adding blockbuster prostate cancer drug Xtandi to its portfolio.

Pfizer has agreed to buy Anacor Pharmaceuticals for $5.2bn (€4.6bn), gaining control of an experimental treatment for eczema in its first deal since walking away from a $160bn takeover of botox maker Allergan.