ketamine

Ketamine, approved as an anesthetic in 1970, is emerging as a major alternative mental health treatment. But more than 500 clinics have popped up around the country, including Florida, with little regulation and widely varying treatments.

The surgical drug is being prescribed as a psychedelic therapy for an array of unapproved uses, including depression and anxiety. Behind the trend are investors setting up for-profit clinics.

An obscure bit of brain tissue appears critical to both out-of-body experiences and our sense of being anchored to a physical self.

Researchers were able to mimic the mind-altering effects of the drug ketamine by inducing a particular rhythm in one area of the brain.

Scientists are learning how the party drug ketamine relieves depression so quickly — and why its effects fade over time.

When abiding fear takes over some kids' lives, they respond with anger and aggression that's not premeditated. One psychiatrist says he's finding profound relief for a particular subgroup of these children in experimental research with the anesthesia drug ketamine.