Opioids

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

Deaths from synthetic opioids such as fentanyl doubled in just a year.

Your body has its own natural pain-relief system, and scientists may be one step closer to learning how to use it for controlling chronic pain.

Can marijuana's use for pain relief slow the opioid epidemic?

The herbal substance kratom contains compounds that can be considered opioids, the FDA said this week.

U.S. officials remain concerned about teen marijuana use — which increased in the past year — and vaping, which is common, according to a new survey.

What makes a particular habit or substance an addiction?

Many parents don't think their child is at risk for misusing opioids. But the numbers suggest otherwise, and it's critical to prevent opioid use at a young age.

Drug overdose deaths are now the leading cause of accidental death in the U.S., surpassing peak annual deaths caused by car accidents, guns and HIV infection.

History repeated itself as the overprescription of painkillers caused widespread addiction.