Ketamine, LSD, Magic Mushrooms, Cannabis and Ecstasy: The Illegal Drugs Which Can be Good for You

Ketamine, the horse tranquilizer which is also a popular party drug, could be used to treat people who have been suffering from long term depression, according a study. Researchers at Oxford Health NHS Foundation Trust and the University of Oxford said they noticed a "remarkable" change in people suffering treatment-resistant depression once they were given the drug, which has recently been upgraded to Class B.

The study, published in the Journal of Psychopharmacology, involved giving 28 patients either three or six intravenous infusions of 5mg/kg of ketamine, each lasting 40 minutes.