A new sensor can detect cocaine, heroin, and fentanyl, even when they are combined with other drugs or additives like sugar and caffeine.

Women are catching up with men’s drug use.

Among adolescents, boys are more likely to die of an overdose than girls, and using combinations of drugs substantially raises the risk of an overdose.

In an effort to reduce costs, drugmakers and dealers often cut, or adulterate, recreational drugs with substances that have been banned by the FDA.

The new findings in rats could explain why it isn't always necessary to enjoy the target of an addiction, like cocaine.

A new study sheds light on how cocaine affects the brain and may offer potential treatments for fighting cocaine addiction.

A new ingredient boosts an existing cocaine vaccine's ability to block the drug's high, a study with mice shows.