Dual diagnosis (also called co-occurring disorders) refers to the simultaneous presence of a substance use disorder and a mental health condition. It is the rule, not the exception: research shows that approximately 50% of people with severe mental health disorders also have a substance use disorder, and vice versa.
Common Co-Occurring Conditions
Depression and addiction frequently co-occur. People may use alcohol or drugs to self-medicate depressive symptoms, while chronic substance use can cause or worsen depression through neurotransmitter disruption. Anxiety disorders (generalized anxiety, social anxiety, panic disorder) drive substance use as self-medication. Alcohol and benzodiazepines temporarily relieve anxiety but create rebound anxiety that worsens the cycle. PTSD has one of the strongest associations with addiction. Substances numb hyperarousal, intrusive memories, and emotional pain. Bipolar disorder is associated with very high rates of substance use — particularly during manic episodes. ADHD increases addiction risk, especially for stimulants and alcohol.
Why Integrated Treatment Matters
Historically, mental health and addiction were treated separately — patients were told to "get sober first" before addressing mental health, or vice versa. This approach fails because untreated mental health symptoms are the primary drivers of relapse. Treating addiction without addressing depression, anxiety, PTSD, or other conditions leaves the root cause unmanaged.
Integrated dual diagnosis treatment addresses both conditions simultaneously, using psychiatric medication for the mental health condition, behavioral therapy targeting both addiction and mental health, medication-assisted treatment for the substance use disorder, and trauma-informed care throughout the program.
Finding Dual Diagnosis Treatment
Look for programs that have licensed psychiatrists on staff, offer psychiatric medication management alongside addiction treatment, use evidence-based therapies for both conditions, and don't require patients to "stabilize" one condition before treating the other.
Call (855) 392-7460 to find integrated dual diagnosis programs in your area.