Written by Glintcare Clinical Team
Our multidisciplinary clinical team develops and reviews educational mental health content to ensure accuracy, clarity, and alignment with current clinical practice.

Dual diagnosis — also called co-occurring disorders — refers to the presence of both a substance use disorder and a mental health condition. Approximately 50% of people with a substance use disorder also have a co-occurring mental health condition, and vice versa. Integrated treatment that addresses both conditions simultaneously is essential for lasting recovery.
Which Conditions Commonly Co-Occur?
Depression and Alcohol Use Disorder: People may drink to self-medicate depressive symptoms
Anxiety and Benzodiazepines or Alcohol: Short-term relief leads to long-term worsening
PTSD and Substance Use: Trauma survivors may use substances to numb intrusive memories
Bipolar Disorder and Substance Use: Manic episodes increase risk-taking, depression increases self-medication
ADHD and Stimulant Misuse: Prescribed stimulants can be misused or replaced by illicit alternatives
Personality Disorders and Substance Use: Particularly borderline and antisocial personality disorders
The Chicken-or-Egg Problem
Sometimes mental health conditions precede and contribute to substance use. Sometimes substance use triggers or worsens mental health symptoms. Often, the relationship is bidirectional — each condition worsens the other. Determining which came first is less important than treating both together.
Why Integrated Treatment Matters
Treating only the addiction while ignoring the mental health condition leads to higher relapse rates. Treating only the mental health condition while ignoring the addiction means substance use can undermine treatment. Integrated treatment addresses both simultaneously, recognising that they are interconnected.
Components of Integrated Treatment
Comprehensive Assessment: Evaluating all mental health and substance use conditions
Medication Management: Careful coordination of psychiatric medications
Therapy: CBT and DBT adapted for co-occurring disorders
Peer Support: Groups specifically for people with dual diagnoses
Relapse Prevention: Addressing triggers related to both conditions
Family Involvement: Education and support for family members
At Glintcare
Our dual diagnosis programme provides truly integrated care. Our team includes both addiction specialists and mental health professionals who work together to develop comprehensive treatment plans. You do not have to choose which condition to treat first — we treat the whole person.

