How a variation on Botox could be used to treat pain

Drugs made with botulinum toxin may offer an alternative to opioids, a study in mice finds

nerve cells

RIGHT ON TARGET  A painkiller made with botulinum toxin prevents certain nerve cells (green) from relaying pain information to the brain in mice.

M. Maiarù

Painkillers crafted with a part of the wrinkle-smoothing drug Botox provide long-term pain relief in mice.