Robert F. Kennedy Jr. ‘s bid to be the nation’s top health official is uncertain after a key Republican joined Democrats to raise concerns over the nominee's skepticism of childhood vaccinations.

A new type of non-opioid painkiller, aimed at treating short-term pain in adults, has been approved by the US Food and Drug ...

U.S. officials have approved a new type of pain drug designed to eliminate the risks of addiction and overdose associated with opioids.