There is ample evidence that pinpoints neurological disorders as one of the greatest threats to public health. There are several gaps in understanding the many issues related to neurological disorders, but we already know enough about their nature and treatment to be able to shape effective policy responses to some of the most prevalent among them.

Mental, neurological and substance use disorders are highly prevalent and burdensome globally. The gap between what is urgently needed and what is available to reduce the burden is still very wide.

This publication is a technical tool developed by WHO to assist in implementation of mhGAP. The Intervention Guide has been developed through a systematic review of evidence followed by an international consultative and participatory process.