Ketamine is also approved as a tranquilizer for humans. The Food and Drug Administration has already approved esketamine, a nasal spray containing ketamine, for treating depression. However, people have discovered that ketamine can also be used as a recreational drug. It is consumed recreationally by snorting or injecting it, though ketamine pills are also available for consuming orally. Given its anesthetic properties, it can induce a high and a loss of consciousness if enough is taken. It can be very dangerous to consume ketamine without proper supervision.