Ketamine may rapidly ease suicidal thoughts and improve cognition

Research from Columbia University suggests that ketamine may provide rapid relief for suicidal thoughts in individuals with major depressive disorder. A study involving 78 participants found that a single intravenous infusion of ketamine could improve certain cognitive abilities, such as concentration and decision-making, which are often impaired during severe depressive episodes. These cognitive improvements may be linked to the drug's ability to reduce suicidal ideation.

Unlike traditional antidepressants that can take weeks to function, ketamine acts on the brain's glutamate system and can produce effects within hours. While ketamine is used medically for anesthesia, pain management, and treatment-resistant depression through FDA-approved formulations, it carries risks. Side effects can include dissociative, sedative, and hallucinogenic reactions, which vary based on dosage and whether the substance is used under medical supervision or recreationally.