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Dual diagnosis, also called co-occurring disorder, describes a situation where a person is experiencing both a mental health concern and alcohol or drug use issues. Examples can include depression and alcohol use, anxiety and cocaine use, PTSD and substance use, or other combinations.
Recovery Scotland is an information and referral support service. We do not diagnose mental health conditions, provide clinical treatment or operate a rehab centre. We can help you understand treatment pathways and, where appropriate, discuss providers who may be able to assess your needs.
If there is immediate risk of harm, call 999. For urgent non-emergency advice in Scotland, contact NHS 24 on 111 or speak with a GP.
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Recovery Scotland can offer confidential guidance about addiction and mental health support options. We do not provide treatment directly, but we can help you understand possible next steps and referral routes.
Contact us or call 01475 303998.
What Is Dual Diagnosis?
Dual diagnosis involves the coexistence of a mental health issue, such as depression, anxiety or PTSD, alongside a substance use disorder, such as alcohol or drug addiction.
Mental health symptoms and substance use can affect each other. Substance use may worsen anxiety, depression or trauma symptoms, while untreated mental health difficulties may make it harder to reduce alcohol or drug use.
Because needs can overlap, it is important to seek advice from qualified professionals or providers who can assess both mental health and substance use.
What Dual Diagnosis Support May Include
Support should be based on individual assessment. Depending on the provider and the person’s needs, dual diagnosis support may involve:
- Mental health and substance use assessment
- Detox support where clinically appropriate
- Therapy or counselling
- Relapse prevention planning
- Medication review by qualified prescribers where relevant
- Family, peer or community support
- Aftercare and follow-up planning
Recovery Scotland does not deliver these services directly. We can help you understand what questions to ask and what types of provider may be suitable.
Choosing A Dual Diagnosis Provider
When comparing providers, ask whether they can assess both mental health and substance use needs. It can also help to ask who delivers clinical care, whether detox is available if needed, what therapies are offered, how risk is managed and what aftercare is included.
Be cautious of any provider promising a cure or guaranteed recovery. A suitable provider should explain realistic goals, risks, costs and follow-up support.
Key Benefits Of Integrated Support
Integrated support can help people understand how mental health symptoms and substance use affect each other. This may support safer coping strategies, relapse prevention, emotional regulation and longer-term planning.
Potential benefits can include:
- A clearer understanding of triggers and patterns
- Support for both mental health and substance use
- More joined-up care planning
- Relapse prevention and aftercare planning
- Practical steps for family, work and daily routines
The right approach depends on assessment and individual circumstances.
How Long Does Co-Occurring Disorder Treatment Last?
Treatment length varies by provider, programme type, detox needs, mental health needs and aftercare plan. Some residential programmes last around 28 days, while outpatient or community support may follow a different timetable.
A provider should explain the recommended length after assessment and outline what is included. Recovery Scotland does not set programme lengths or treatment plans.
Contact Recovery Scotland Today
If you would like to understand dual diagnosis support options, Recovery Scotland can offer confidential guidance and referral support.
We do not provide clinical treatment directly or admit people to a facility. Where appropriate, we can help you explore suitable providers and questions to ask before making a decision.
Dual Diagnosis Treatment FAQs
What types of mental health disorders are commonly treated alongside substance use disorders in Dual Diagnosis?
Dual diagnosis providers may support people with anxiety disorders, depression, PTSD, bipolar disorder and other mental health concerns alongside alcohol or drug use. The right support depends on assessment by qualified professionals. A provider should explain what conditions they can assess, who delivers clinical care and whether they can support the specific combination of mental health and substance use needs involved.
How is the treatment approach for dual diagnosis different from standard addiction treatment?
Dual diagnosis support is different because it considers both substance use and mental health needs together. This matters because untreated mental health symptoms can increase relapse risk, while alcohol or drug use can worsen mental health symptoms. Support may include therapy, relapse prevention, medication review where appropriate, detox support if required and aftercare planning. The exact approach depends on provider assessment.
What role does trauma play in dual diagnosis, and how is it addressed?
Trauma can be an underlying factor for some people with mental health and substance use concerns. Trauma-informed providers should explain how they assess trauma-related symptoms, how risk is managed and what therapies are available. Recovery Scotland can help you understand what questions to ask before choosing a provider, but we do not provide trauma therapy or clinical treatment directly.
Will I need to take medications for both my mental health condition and substance use disorder?
Medication management can be an essential part of dual diagnosis treatment, but it depends on your specific situation. Some individuals may benefit from medications like antidepressants or mood stabilisers to manage mental health symptoms. Others might use medications such as naltrexone or buprenorphine for addiction recovery. Our medical team works closely with you to find the right balance, always considering your comfort and long-term recovery.
How do you ensure that the treatment for mental health doesn't trigger substance use relapse?
Treating both needs together may reduce the risk of one condition worsening the other. For example, untreated depression or anxiety can contribute to substance use as a form of self-medication, while ongoing substance use can make mental health symptoms harder to manage. A provider should explain how therapy, relapse prevention, monitoring, peer support and aftercare are used to reduce the risk of setbacks.
Is dual diagnosis treatment suitable for someone with a severe mental health disorder?
Yes, dual diagnosis treatment is often necessary for individuals with severe mental health conditions - especially because these disorders can exacerbate substance use. Our team includes psychiatric professionals who specialise in managing severe mental health issues, ensuring that treatment is safe and effective. The comprehensive, integrated care model is designed to address both the intensity of the mental health condition and the addiction, creating a balanced, supportive environment for recovery.
John Gillen
- Author
- Last updated: June 17, 2026
John has travelled extensively around the world, culminating in 19 years’ experience looking at different models. He is the European pioneer of NAD+ (Nicotinamide Adenine Dinucleotide) treatment to Europe in 2010; and recently back from the USA bringing state of the art Virtual Reality Relapse Prevention and stress reduction therapy. His passion extends to other metabolic disturbances and neurodegenerative diseases. The journey continues. In recent times, John has travelled to Russia to study and research into a new therapy photobiomudulation or systemic laser therapy working with NAD+ scientists and the very best of the medical professionals in the UK and the USA, together with Nadcell, Bionad Hospitals own select Doctors, nurses, dieticians and therapists. Johns’ passion continues to endeavour to bring to the UK and Europe new developments with NAD+ Therapy in preventive and restorative medicine and Wellness. In 2017 John Gillen was made a visiting Professor at the John Naisbitt university in Belgrade Serbia.