Co-Occurring Disorders

What Are Co-Occurring Disorders?

A self-perpetuating cycle of substance use and psychiatric illness.

Individuals struggling with both drug addiction and another mental illness are described as having "co-occurring disorders."

This condition creates a self-perpetuating cycle: psychological distress prompts substance use as self-medication, which then alters brain chemistry and worsens the psychiatric condition. Drug withdrawal causes emotional lows that encourage additional self-medication — sometimes triggering full psychiatric illness in previously undiagnosed individuals.

What Causes Them

Shared roots in brain chemistry, genetics, and environment.

Brain abnormalities in areas such as the reward pathways likely cause both addiction and mental illness simultaneously. Both disorder types typically emerge during puberty or adolescence, when the developing brain is particularly vulnerable to drug exposure. Genetic predisposition increases susceptibility to both conditions, and having one disorder can increase the risk of developing a second. Environmental triggers — trauma, stress, loneliness, and early drug exposure — all play significant roles.

Most Commonly Treated

Every client is screened for a second diagnosis.

Every client at Two Dreams carries an addiction diagnosis — recognized as a mental illness characterized by changes in behavior that arise from drug-induced alterations in the brain. Clients frequently present with a simultaneous diagnosis of depression, anxiety, bipolar disorder, personality disorders, chronic pain, relationship or codependency issues, and sleep disorders.

Why It Requires Special Care

Untreated, the combination compounds risk.

The combination of addiction and mental illness creates high-risk outcomes — poverty, homelessness, incarceration, and illness. Integrated care reduces these negative consequences, increases the probability of lasting abstinence, and promotes overall wellness.

How We Treat Both At Once

Integrated care, not sequential care.

Co-occurring disorder management requires balancing both conditions simultaneously. Detoxification and abstinence, while beneficial, often increase distress and depression, and psychiatric medications may interact with substances still in a client's system. Because both psychiatric medicines and drugs alter brain chemistry, our physicians customize each medication regimen carefully — enabling more predictable outcomes than treating one condition at a time.

Every substance-abuse client undergoes a mental-illness evaluation, and vice versa. Our clinicians examine detailed histories for co-occurring patterns, since repeated cycles of admission and discharge often signal unaddressed multiple issues. Our collaborative staff — addiction specialists, psychologists, psychiatrists, clinical social workers, and substance-abuse group consultants — ensures every clinical need is covered, alongside client and family education about how co-occurring disorders affect each other.

Frequently Asked Questions

Common questions about co-occurring disorders.