Dec. 1 is World AIDS Day. And this year's theme is "The Time to Act Is Now."

The FDA just approved a first-of-its-kind medication that could cause a blow to one of the leading causes of death in the US.

On Sept. 26, thousands of people lined up at designated collection sites across the US to get rid of their unused, unwanted, or expired prescription drugs.

Recently, marijuana's merits or dangers as a natural product have been hotly debated. Now a new talking point in this debate may have emerged.

Recent changes in the prescription opioid market might have led to a big step forward in the fight against opioid dependency.

Fentanyl, a powerful opioid drug often used to relieve pain for terminally ill patients, may have some much more dangerous uses.

Parents may breathe a little easier — fewer teens may be lighting up, getting high and binge drinking.

From bath salts to laundry pods, many items can pose poisoning risks. Calls to poison control centers around the US have not only saved many people's lives, they've also identified new trends in toxic substance exposure.

They relieve anxiety and help many patients sleep, but benzodiazepines might not be the best choice for many patients — especially over the long term. Still, many older patients were taking these medications. 

Some doctors may believe that opioids to treat pain are prescribed too often and pose a risk of abuse. That belief might have made some less likely to prescribe these medications.