Here are some of the biggest medical advances in 2023

New treatments include the first CRISPR gene-editing therapy, an Alzheimer’s drug and RSV vaccines

A photo illustration of a package of Narcan

In March, the U.S. Food and Drug Administration said the nasal spray Narcan, which can reverse the effects of an opioid overdose, could be sold over the counter.

Justin Sullivan/Getty Images News

Weight-loss drugs stole much of the spotlight in 2023, but these medical advances treating other conditions are also worthy of attention (SN: 12/13/23).

Green light for CRISPR gene editing

On December 8, the U.S.