What is ketamine, the drug tied to actor Matthew Perry's death?
Perry was using ketamine infusion therapy for depression and anxiety. But his last infusion was likely not responsible for his death, according to his autopsy.
The use of the drug ketamine has evolved since its development in the 1960s as a human and animal anesthetic. Today, it's known both as a promising new treatment for severe depression and as a psychedelic party drug.
It's also now tied to the tragic death of Friends star Matthew Perry.
The actor died from the acute effects of the mind-bending drug, ketamine,The 54-year-old accidentally drowned at his Los Angeles home.
