Opioids

The study shows for the first time that ketamine needs to activate opioid receptors in order to have antidepressant effects.

The director of the largest U.S. public health agency reveals he has a personal reason for fighting the opioid epidemic.

Parents might not be storing these dangerous pills properly, a new study finds.

Marijuana use may affect how much pain people feel and the dose of painkillers they need following traumatic injury.

Every day, an estimated 300 to 520 people in the U.S. try heroin. But how many develop a dependency?

Why are scientists searching for drugs in shellfish?

Readers of a certain age will know the reference.

Lives tragically claimed by the American opioid epidemic may benefit people desperately in need of organ transplants.

The same medication used to save lives by reversing opioid overdoses may also benefit nonopioid users

Access to medical marijuana may have cut patients' need for this other drug.