Covid Symptoms Can Rebound Even If You Don’t Take Paxlovid

A new study found that more than a third of those who recovered from an infection had symptoms recur days or weeks later.

Gene Treatment for Rare Epilepsy Causes Brain Side Effect in 2 Children

The side effect, a buildup of fluid in the brain, led to the death of one of the children and presents a grave setback for a class of personalized medicine.

Some Breast Cancer Patients Could Skip Surgery, Study Suggests

In a small trial, chemotherapy alone was sufficient to treat women with certain kinds of tumors.

With Promise of Legalization, Psychedelic Companies Joust Over Future Profits

Cash rich start-ups are filing scores of patent claims on hallucinogens like magic mushrooms. Researchers and patient advocates worry high prices will make the therapies unaffordable.

As Midterms Near, Biden Warns Republicans Seek to Dismantle Democratic Legislation

The president told MSNBC that G.O.P. lawmakers could undo Democrats’ legislative victories if they regained control of Congress.

Cough Syrup: What We Know About Tainted Medicine from India

Tainted syrup from India may be connected to the deaths of dozens of children in Gambia, officials said. Indonesia banned cough syrup sales, though the link there is unclear.

FDA Panel Recommends Pulling Preterm Birth Drug From the Market

The agency has weighed years of study that showed the treatment given accelerated approval 11 years ago was not effective.

Biden Tries to Reassure Voters on Health Care Costs Before Election

At an event in Southern California, the president says his administration is working to keep costs down and warns that Republicans will drive prices higher if they gain power.

What A.L.S. and Alzheimer’s Drug Approvals Have in Common

How to balance patient’s needs with their safety.

F.D.A. Confirms Widespread Shortages of Adderall

The agency cited Teva’s continuing supply problems as well as those of other drug makers struggling to fill the gap.