Pfizer plans to discontinue its obesity drug lotiglipron and focus instead on its weight loss drug danuglipron as it races to rival the success of ot…

Pfizer struck a roughly $43 billion deal for Seagen to bulk up its cancer treatment portfolio.

Pfizer raised its forecast for annual sales of its COVID vaccine to $34 billion on demand for Omicron-targeted boosters, helping allay some investor …

Drugmaker Moderna, an innovator in the mRNA vaccine technology that enabled the unprecedented speed in developing the COVID vaccine, is suing Pfizer …

Pfizer is boosting its pipeline with a $5.4 billion deal for blood disorder drugmaker Global Blood Therapeutics, the latest in a series of acquisitio…

Africa's top public health body said it signed a memorandum of understanding with Pfizer for countries on the continent to receive supplies of th…

Pfizer plans to make all its patented medicines available at a not-for-profit price for the world’s poorest nations. That will include treatments for…

Shares of Pfizer fell after the drugmaker's forecast for this year's sales of its COVID-19 vaccine and antiviral pills came in below Wall Str…

Pfizer and BioNTech said they started a clinical trial to test a new version of their vaccine specifically designed to target the COVID-19 Omicron va…

The United States on Wednesday authorized Pfizer’s antiviral COVID-19 pill for at-risk people aged 12 and above, making it the first oral treatment a…

A panel of outside advisers to the U.S. Centers for Disease Control and Prevention on Thursday voted to recommend Americans choose to receive one of …

BioNTech said it's expecting more data in the coming weeks on a worrying new COVID-19 variant first detected in South Africa, which would help de…

Pfizer said its COVID-19 vaccine provided strong long-term protection against the virus in a late-stage study conducted among adolescents aged 12 to …

Pfizer said it will allow generic manufacturers to supply its experimental antiviral COVID-19 pill to 95 low- and middle-income countries through a l…

A trial of Pfizer's experimental antiviral pill for COVID-19 was stopped early after the drug was shown to cut by 89% the chances of hospitalizat…

Pfizer said it expected 2021 sales of the COVID-19 vaccine it developed with German partner BioNTech to reach $36 billion and forecast another $29 bi…

The Pfizer/BioNTech COVID-19 vaccine showed 90.7% efficacy against the coronavirus in a clinical trial of children 5 to 11 years old, the U.S. drugma…

Pfizer and BioNTech said a booster shot of their COVID-19 vaccine restored efficacy to 95.6% against the virus, including the Delta variant, accordin…

Pfizer and BioNTech have asked U.S. regulators to authorize emergency use of their COVID-19 vaccine for children ages 5 to 11

Pfizer said on Monday it has started a large study testing its investigational oral antiviral drug for the prevention of COVID-19 infection among tho…