Ketamine: No clear benefit for chronic pain

November 12, 2025
Neuroscience Research Australia (NeuRA)

Ketamine is regularly used for the treatment of chronic pain, but a new Cochrane review report has found there is no clear evidence of its benefit for this off-label use.

Ketamine is an anaesthetic commonly used to sedate people for medical procedures and for short-term pain relief. Ketamine is also frequently given off-label to manage chronic pain conditions such as nerve pain, fibromyalgia and complex regional pain syndrome.

It is one of several N‑methyl-D-aspartate (NMDA) receptor antagonists — a group of drugs thought to reduce pain by blocking certain brain receptors involved in pain signalling.