One case report stated that motivational interviewing helped a person decide to stop using ketamine. Ketamine dependence is uncommon, but frequent use does commonly lead to tolerance. That means people who use ketamine have to take higher doses or use the drug in risky ways to feel the same effects. People with a high tolerance to ketamine often binge, taking excessive amounts of the drug over a short period. In recent years there has been a dramatic increase in the focus on wellbeing and therapy and recognition that many forms of trauma and depression can be resistant to conventional treatment