All about Pfizer

Drug firm accused of breaking competition law by charging 'unfair' prices

What does AstraZeneca plc's deal with Pfizer mean for shareholders?

Piers Morgan and Susanna Reid upset viewers over Owen Smith interview about bullying and viagra

30% of health professionals refuse to be named on drug firm payments database

Pfizer drops merger with Botox maker Allergan after US tax clampdown

Pfizer and Flynn Pharma accused over epilepsy drug pricing

Pfizer withdraws AstraZeneca bid

AstraZeneca rejects new Pfizer bid

Jobs 'sole interest' in Pfizer bid

AstraZeneca braced for hostile bid

AstraZeneca rejects new Pfizer bid

Pfizer increases AstraZeneca bid

Pfizer reveals AstraZeneca bid

Viagra set to tumble in price