From operating rooms to dance floors, Ketamine's popularity is soaring. But what makes it so appealing - and why is it riskier than many think? Julian Stratenschulte/dpa The death of "Friends" star ...

“You may feel like you’re going to die — but you’re not. Your body is right here in this safe place and we are monitoring you to ensure you are safe.” That’s what Steph Mahrle, a 43-year-old ...

Ketamine is a fast-acting antidepressant that may be effective in treating depression when patients haven’t responded to other medications. About 30% of all patients with depression don’t respond to ...

The death of "Friends" star Matthew Perry, who had high levels of ketamine in his system when he died, and the public use by tech billionaire Elon Musk have pushed ketamine into the global spotlight.