This guideline covers assessing and managing people aged 14 years and over with coexisting severe mental illness (psychosis) and substance misuse. It aims to help healthcare professionals guide people with psychosis with coexisting substance misuse to stabilise, reduce or stop their substance misuse, to improve treatment adherence and outcomes, and to enhance their lives.

NICE has also produced a guideline on coexisting severe mental illness and substance misuse: community health and social care services.

Recommendations

This guideline includes recommendations on:

Who is it for?

  • Healthcare professionals
  • People working in services delivered by the third sector and commissioned by the NHS
  • People with psychosis with coexisting substance misuse, and their families and carers

Is this guideline up to date?

We reviewed the evidence in November 2016. We found no new evidence that affects the recommendations in this guideline.

Next review: 2018

Guideline development process

How we develop NICE guidelines

This guideline was previously called psychosis with substance misuse in over 14s: assessment and management. The name was changed to clarify the population and show how the recommendations in this guideline fit with those made for community health and social care services.

Your responsibility

The recommendations in this guideline represent the view of NICE, arrived at after careful consideration of the evidence available. When exercising their judgement, professionals are expected to take this guideline fully into account, alongside the individual needs, preferences and values of their patients or service users. The application of the recommendations in this guideline is not mandatory and the guideline does not override the responsibility of healthcare professionals to make decisions appropriate to the circumstances of the individual patient, in consultation with the patient and/or their carer or guardian.

Local commissioners and/or providers have a responsibility to enable the guideline to be applied when individual health professionals and their patients or service users wish to use it. They should do so in the context of local and national priorities for funding and developing services, and in light of their duties to have due regard to the need to eliminate unlawful discrimination, to advance equality of opportunity and to reduce health inequalities. Nothing in this guideline should be interpreted in a way that would be inconsistent with compliance with those duties.

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