Senators Question Califf, the F.D.A. Nominee, on Opioid Crisis and Pandemic Response

A Senate panel hearing on Tuesday signaled that Dr. Robert Califf, who briefly led the agency during the Obama administration, had some bipartisan support.

Can Eye Drops Replace Reading Glasses?

Vuity, a once-a-day treatment that can help users see up close without affecting their long-range vision, went on the market Thursday after being approved by the F.D.A. in October.

Pfizer Says Its Covid Pill, Paxlovid, Will Protect Against Severe Disease

The company said the pill, Paxlovid, reduced the risk of hospitalization and death by 89 percent if given within three days of the onset of symptoms.

Firms Push for Over-the-Counter Access to Birth-Control Pills

Two drug makers have been mired for years in the pre-application phase of getting F.D.A. approval for over-the-counter use.

Merck’s Covid Pill Might Pose Risks for Pregnant Women

Some laboratory studies suggest that molnupiravir can insert errors in DNA, which could in theory harm a developing fetus, sperm cells or children.

Coronavirus Briefing: What Happened Today

Pfizer and BioNTech say booster shots offer strong protection against Omicron.

F.D.A. Authorizes AstraZeneca Drug for People With Immune Problems

The antibody drug, Evusheld, was found to be strongly effective in preventing Covid in a clinical trial that enrolled mostly those at high risk.

Los nuevos antivirales para la covid ofrecen esperanza frente a la variante ómicron

Merck y Pfizer están por presentar sus pastillas de prescripción para tratar la COVID-19. Vienen más fármacos en camino.

Los nuevos antivirales para la covid ofrecen esperanza frente a la variante ómicron

Merck y Pfizer están por presentar sus pastillas de prescripción para tratar la COVID-19. Vienen más fármacos en camino.

Elizabeth Holmes returns to the stand on Tuesday.

Prosecutors have shown personal documents like text messages and notes that Ms. Holmes wrote and have emphasized that she was ultimately responsible for the problems at Theranos.