After her suicide attempt, Louise’s psychiatrist suggested she try ketamine. She agreed, and received an infusion intravenously. Within hours, her sense of well-being improved. The hospital discharged her. Back home, she discovered that going to the market was no longer a “herculean task.” Getting her car washed wasn’t an insurmountable chore. “Life was better,” she said. “Life was doable.”

As a journalist who covers health and medicine, I had read about the success of experimental trials that used ketamine to treat depression. My therapists had recommended extreme treatments like electroshock therapy, a procedure that frightened me due to reports of memory loss from those who had undergone it, but had never mentioned this. But I was getting desperate for a serious intervention.

For six years now, life has been really good for James. He has a great job as the creative director of an advertising firm in New York City. He enjoys spending time with his wife and kids.

And it has all been possible, he says, because for the past six years he has been taking a drug called ketamine.

Like a May shower, the studies on psychedelic drugs' potential therapeutic benefits came — first as a sprinkle, then a steady downpour. Between 2012 and 2017, the papers abounded. One, published in 2016, suggested that magic mushrooms might alleviate anxiety in cancer patients; another in 2017 indicated that ecstasy could help veterans cope with PTSD symptoms; and one in 2012 hinted that ketamine might curb major depression.

In a new review in Science, the authors call the identification of the anesthetic and “club drug” ketamine as a rapid treatment for depression “arguably the most important discovery in half a century” of research on the condition.

Bipolar disorder is a serious and debilitating condition where individuals experience severe swings in mood between mania and depression. The episodes of low or elevated mood can last days or months, and the risk of suicide is high.

For these reasons, better treatments for depression are desperately needed. A new study in Biological Psychiatry this week confirms that scientists may have found one in a drug called ketamine.