Dual Diagnosis SUD & Mental Health Treatment in Maine
Integrated Treatment for Substance Use and Mental Health
Substance use and mental health symptoms often become deeply connected. Someone may drink to quiet anxiety, use opioids to numb trauma, misuse stimulants to keep functioning, or return to substances when depression becomes overwhelming. In other cases, alcohol or drug use may cause, intensify, or imitate psychiatric symptoms.
Dual diagnosis treatment, also called co-occurring disorder treatment, addresses both sides of that relationship. Rather than separating addiction treatment from mental health care, an integrated program evaluates how substance use, emotional health, trauma, relationships, medications, and daily stressors affect one another.
At Portland Treatment, we provide personalized treatment for substance use disorders and co-occurring mental health concerns at our facility in Biddeford, Maine, near Portland. Our programs combine structured addiction treatment, mental health support, medication management, individual therapy, group therapy, and evidence-based approaches that help clients build stability in every area of recovery.
What Is a Dual Diagnosis?
A dual diagnosis means that someone is experiencing both a substance use disorder and a mental health condition. The conditions may begin at different times, and one does not always directly cause the other.
For example, a person may have experienced anxiety or trauma before beginning to use substances. Someone else may develop depression, paranoia, panic, or sleep disturbances after prolonged substance use. Genetics, stress, trauma, environmental factors, and changes in the brain can also contribute to both substance use and mental health disorders.
Because symptoms can overlap, a careful assessment is essential. Depression may be intensified by withdrawal. Stimulant use can resemble or aggravate anxiety, ADHD, mania, or psychosis. Trauma symptoms may be hidden by alcohol or sedative use. Effective treatment looks at the complete clinical picture instead of assuming every symptom has the same cause.
Why Treating Only One Condition May Not Be Enough
Addiction treatment can help someone stop using drugs or alcohol, but untreated depression, anxiety, trauma, impulsivity, or emotional instability may continue to create powerful relapse triggers.
Mental health treatment alone may also be less effective when ongoing substance use interferes with sleep, mood, medication effectiveness, judgment, relationships, and participation in therapy.
Integrated dual diagnosis treatment helps clients understand questions such as:
What emotions, memories, situations, or symptoms lead me to use?
Which symptoms existed before substance use began?
Which symptoms appear during intoxication or withdrawal?
Am I using substances to sleep, focus, socialize, or regulate emotions?
Are my medications being taken safely and consistently?
What skills will help me manage distress without returning to substances?
The objective is not simply to stop one behavior. It is to understand the cycle connecting mental health and substance use, and build a realistic plan for interrupting it.
What We Treat
Portland Treatment works with people experiencing substance use disorders alongside a range of mental health symptoms and diagnoses. Each client receives an individualized assessment to determine whether our outpatient levels of care can safely and effectively meet their needs.
Substance Use Disorders
We provide treatment for substance use involving alcohol, opioids, fentanyl, heroin, prescription pain medications, benzodiazepines, cocaine, methamphetamine, other stimulants, cannabis, kratom, 7-hydroxymitragynine products, tianeptine, and polysubstance use.
Treatment may include relapse-prevention planning, individual and group therapy, medication-assisted treatment when appropriate, medication management, recovery education, peer support, and coordination with detoxification services when withdrawal must be managed before outpatient care begins.
Depression
Depression can affect motivation, energy, concentration, sleep, relationships, self-worth, and the ability to maintain a recovery routine. Some people use substances to temporarily escape emotional pain or generate enough energy to function.
Treatment focuses on identifying the interaction between depressive symptoms and substance use, developing healthier coping strategies, restoring daily structure, and coordinating therapy and medication support when clinically appropriate.
Anxiety
Anxiety may involve persistent fear, physical tension, panic symptoms, intrusive worries, irritability, avoidance, or difficulty sleeping. Alcohol, benzodiazepines, cannabis, opioids, and other substances may initially seem to provide relief while gradually increasing dependence, rebound anxiety, or emotional instability.
Our clinicians help clients recognize anxiety-driven substance use and develop healthier ways to manage distress, uncertainty, physical symptoms, and triggers.
Post-Traumatic Stress Disorder
Post-traumatic stress disorder, or PTSD, can involve intrusive memories, nightmares, avoidance, heightened alertness, emotional numbness, anger, guilt, or difficulty feeling safe. Some people use substances to suppress memories, sleep, manage hypervigilance, or disconnect from overwhelming emotions.
Trauma-informed dual diagnosis treatment establishes safety and stabilization while helping clients develop coping skills, understand triggers, and reduce reliance on substances.
Treatment-Resistant Depression
Treatment-resistant depression generally refers to depression that has not improved sufficiently after appropriate treatment attempts. Definitions vary, but the term is often used when multiple adequate interventions have not produced meaningful relief.
Portland Treatment can address the substance use, impaired functioning, relapse risk, medication concerns, and behavioral patterns associated with persistent depression. Treatment may involve psychotherapy, medication management, recovery support, and coordination with psychiatric or specialty providers when more advanced depression interventions are indicated.
Seasonal Affective Disorder
Seasonal affective disorder, or SAD, is a form of depression that follows a recurring seasonal pattern. Symptoms most commonly begin during the fall or winter, when daylight hours become shorter, although some people experience symptoms during the spring or summer. SAD may involve persistent sadness, low energy, oversleeping, changes in appetite, difficulty concentrating, social withdrawal, loss of interest, and feelings of hopelessness.
Some people use alcohol, cannabis, stimulants, or other substances to cope with seasonal depression, increase energy, improve sleep, or temporarily escape difficult emotions. Substance use may provide brief relief while ultimately worsening mood, disrupting sleep, reducing motivation, and increasing the risk of dependence or relapse.
When seasonal depression occurs alongside a substance use disorder, treatment can address the relationship between mood changes, isolation, reduced daily structure, cravings, and substance use. Portland Treatment helps clients build healthier coping strategies, maintain recovery routines throughout seasonal changes, and receive therapy and medication support when clinically appropriate. Specialized interventions, such as light therapy, may also be coordinated with an appropriate medical or mental health provider.
Complex Post-Traumatic Stress Disorder
Complex PTSD, commonly abbreviated as CPTSD, includes core trauma symptoms along with persistent difficulties involving emotional regulation, self-concept, and relationships. C-PTSD is recognized in the World Health Organization’s ICD-11, although it is not listed as a separate diagnosis in the DSM-5.
Treatment may focus on stabilization, distress tolerance, emotional awareness, relationship patterns, boundaries, shame, dissociation, and the ways trauma has influenced substance use.
Social Anxiety
Social anxiety can make conversations, groups, work settings, public situations, and relationships feel threatening or overwhelming. Someone may rely on alcohol, cannabis, benzodiazepines, or other substances to feel less inhibited, reduce fear of judgment, or tolerate social environments.
Treatment helps clients challenge avoidance patterns, practice coping skills, build confidence, and participate in recovery without depending on substances to manage social discomfort.
Generalized Anxiety Disorder
Generalized anxiety disorder, or GAD, involves excessive or difficult-to-control worry across different areas of life. It may be accompanied by restlessness, muscle tension, irritability, sleep problems, fatigue, or difficulty concentrating.
Dual diagnosis care addresses both the anxiety and any substance use that has become part of the person’s attempt to manage chronic worry.
Obsessive-Compulsive Disorder
Obsessive-compulsive disorder, or OCD, involves recurring intrusive thoughts, images, or urges known as obsessions, along with repetitive behaviors or mental rituals known as compulsions. Common symptoms may include contamination fears, repeated checking, excessive reassurance seeking, counting, arranging, reviewing conversations, or performing rituals intended to prevent a feared outcome.
Some people use alcohol, cannabis, benzodiazepines, opioids, or other substances to temporarily quiet intrusive thoughts, reduce anxiety, interrupt compulsions, or cope with the exhaustion caused by OCD. Although substances may provide brief relief, they can worsen anxiety, interfere with treatment, increase avoidance, and create an additional cycle of dependence.
When OCD symptoms occur alongside a substance use disorder, treatment may focus on identifying how obsessions, compulsions, avoidance, and substance use reinforce one another. Portland Treatment can address the substance use, emotional distress, relapse risks, and daily functioning challenges associated with co-occurring OCD. When specialized OCD treatment, such as exposure and response prevention, is needed, our team may coordinate care with an appropriate mental health provider.
Attention-Deficit/Hyperactivity Disorder
ADHD can affect attention, impulse control, organization, time management, emotional regulation, and consistency. These challenges can make it harder to follow a recovery plan, attend appointments, manage medications, or pause before acting on cravings.
Some people also begin misusing stimulants or other substances in an attempt to focus, increase motivation, slow racing thoughts, or regulate energy. Treatment evaluates current symptoms, medication history, substance use, and practical strategies for improving daily functioning.
Drug-Induced Psychosis
Drug-induced psychosis may involve paranoia, hallucinations, delusional beliefs, severe agitation, confusion, or disorganized thinking associated with intoxication, withdrawal, or prolonged substance exposure. Stimulants, cannabis, hallucinogens, certain emerging drugs, and other substances can contribute to psychotic symptoms.
Acute psychosis requires prompt medical or psychiatric stabilization. Once a person is stable and appropriate for outpatient care, Portland Treatment can address the related substance use, relapse risk, medication needs, and ongoing mental health symptoms. A comprehensive assessment is important because substance-induced symptoms can sometimes resemble an independent psychiatric disorder.
Disordered Eating Patterns
Substance use and emotional distress can disrupt appetite, nutrition, body image, and eating habits. Some people experience restriction, binge eating, emotional eating, appetite suppression, chaotic meal patterns, or a cycle of substance use and compensatory eating behaviors.
When clinically appropriate for our setting, treatment can address the emotional and behavioral patterns connecting food, body image, control, trauma, and substance use. Clients with a medically unstable or primary eating disorder may require specialized eating-disorder treatment before or alongside outpatient addiction care.
Borderline Personality Disorder
Borderline personality disorder, or BPD, may involve intense emotions, unstable relationships, fear of abandonment, impulsive behavior, rapidly changing self-perception, self-destructive coping, or difficulty returning to emotional stability after distress.
BPD commonly overlaps with depression, anxiety, trauma-related conditions, eating disorders, ADHD, and substance use disorders. Evidence-based treatment can help people reduce symptom severity and improve functioning. At Portland Treatment, DBT and other therapeutic approaches may be used to strengthen emotional regulation, distress tolerance, mindfulness, and relationship skills.
Other Personality Disorders
Personality disorders can affect identity, emotional responses, relationships, judgment, behavior, and the ability to adapt to stress. These patterns may complicate treatment when they contribute to impulsive substance use, conflict, avoidance, distrust, isolation, or difficulty maintaining recovery supports.
Treatment is individualized according to the person’s symptoms, functioning, safety, and readiness for change. When a condition requires a more specialized or intensive psychiatric setting, our team can help identify an appropriate referral.
A Note About Clinical Eligibility
The presence of a condition on this page does not automatically determine admission or level of care. Our clinical team evaluates each person individually.
People experiencing severe withdrawal, acute psychosis, immediate danger to themselves or others, medically unstable eating-disorder symptoms, or another psychiatric emergency may need detoxification, emergency stabilization, inpatient psychiatric treatment, or specialized medical care before beginning a Portland Treatment program.
Signs You May Benefit From Dual Diagnosis Treatment
You do not need to know the exact name of your condition before asking for help. Dual diagnosis treatment may be appropriate when:
You use drugs or alcohol to manage anxiety, depression, trauma, sleep, attention, or uncomfortable emotions.
Your mental health symptoms become worse when you stop using.
You repeatedly return to substances during periods of stress or emotional instability.
Previous treatment focused on addiction but did not adequately address your mental health.
Previous mental health treatment was disrupted by ongoing substance use.
You have difficulty taking psychiatric or controlled medications safely.
Substance use has increased paranoia, panic, mood swings, impulsivity, or isolation.
You feel stable for a period and then lose progress when symptoms return.
You are unsure whether your symptoms are caused by substance use, an independent condition, or both.
An assessment can help clarify what is happening and what level of support is most appropriate.
Our Approach to Dual Diagnosis Treatment
Comprehensive Assessment
Treatment begins with an evaluation of your substance use, mental health symptoms, medical history, medications, trauma exposure, previous treatment, relationships, home environment, and current safety needs.
The purpose is not to force your experience into a predetermined label. It is to understand which problems are affecting you now and create a plan that reflects your actual needs.
Individualized Treatment Planning
Two people with the same diagnoses may need very different treatment. Your plan may prioritize stabilization, cravings, trauma symptoms, depression, medication concerns, emotional regulation, relationships, employment, housing, or another immediate need.
Treatment goals are reviewed as you progress and may be adjusted when new symptoms become clearer during early recovery.
Evidence-Based Therapy
Portland Treatment incorporates therapeutic approaches such as:
Cognitive behavioral therapy
Dialectical behavior therapy
Motivational interviewing
Trauma-informed care
Individual therapy
Group therapy
Family therapy
Relapse-prevention education
Mindfulness-based practices
Art therapy and other expressive approaches
Yoga and wellness activities
These services help clients understand triggers, challenge unhealthy patterns, improve emotional regulation, communicate more effectively, and practice recovery skills in everyday life.
Medication Management
Medication can be an important component of treatment for certain mental health and substance use disorders. Our medication-management services are designed to support safe, individualized pharmaceutical care while monitoring benefits, side effects, adherence, interactions, and concerns related to misuse.
When appropriate, medication-assisted treatment may also be incorporated for opioid or alcohol use disorders. Medication is combined with counseling, recovery support, and ongoing clinical monitoring rather than treated as a stand-alone solution.
Individual, Group, and Family Support
Individual therapy provides a private setting to explore personal history, symptoms, triggers, and recovery goals. Group therapy creates opportunities to practice skills, receive feedback, reduce isolation, and build connections with others in recovery.
Family participation may also be incorporated when it is clinically appropriate and supportive of the client’s goals. Family work can improve communication, boundaries, education, and planning for continued recovery.
Whole-Person Recovery
Recovery involves more than symptom reduction. Clients may also need support rebuilding routines, relationships, physical wellness, confidence, employment stability, community connections, and a sense of purpose.
Our approach combines clinical treatment with practical skills and holistic activities that support emotional, physical, and spiritual well-being.
Levels of Dual Diagnosis Care
Partial Hospitalization Program
Our Partial Hospitalization Program provides the greatest amount of structure within our outpatient continuum. Clients participate in substantial daytime programming while living outside the facility during evenings.
PHP may be appropriate for someone stepping down from residential treatment or for someone who needs significant clinical structure but does not require round-the-clock inpatient supervision.
Intensive Outpatient Program
Our Intensive Outpatient Program provides multiple therapeutic sessions during the week while allowing clients to maintain more of their work, school, and family responsibilities.
IOP may be appropriate after PHP or as an initial level of care for someone who is medically and psychiatrically stable but needs more support than traditional weekly outpatient therapy.
Outpatient Program
Outpatient treatment provides continued therapy, medication support, accountability, and relapse-prevention planning at a lower intensity.
It is often used as a step-down level of care or as ongoing support for someone who has established greater stability in recovery.
Detoxification Coordination
Portland Treatment does not replace medically supervised withdrawal management when detoxification is necessary. If stopping alcohol, benzodiazepines, opioids, or another substance could create significant medical or safety concerns, our team can help determine whether detox should occur before outpatient treatment begins.
Why Choose Portland Treatment?
Portland Treatment offers a coordinated approach for people who need more than a one-size-fits-all addiction program.
Our clients receive:
Individualized treatment based on their symptoms, needs, and recovery goals
Care for substance use and co-occurring mental health concerns
PHP, IOP, and outpatient levels of care
Individual, group, and family therapy
Medication management and medication-assisted treatment when appropriate
CBT, DBT, motivational interviewing, and trauma-informed care
Holistic services that support whole-person wellness
Continued planning for relapse prevention and life after treatment
A welcoming treatment environment in Biddeford, near Portland, Maine
Our admissions team can help you understand the program, determine whether detox may be necessary, review potential levels of care, and verify your insurance benefits. Portland Treatment is located at 6 Digital Drive in Biddeford, Maine.
Does Insurance Cover Dual Diagnosis Treatment?
Insurance coverage for dual diagnosis treatment depends on your specific plan, clinical needs, provider network, deductible, authorization requirements, and recommended level of care.
Portland Treatment works with many insurance providers. Our admissions team can contact your insurer, verify your benefits, and explain the information provided by your plan before treatment begins. Insurance verification is confidential and does not obligate you to enter treatment.
Begin Dual Diagnosis Treatment in Maine
You do not have to decide whether addiction or mental health “came first” before asking for help. What matters is finding treatment that recognizes the complete picture.
Portland Treatment provides structured, compassionate care for substance use and co-occurring mental health conditions in Biddeford, Maine. Our admissions team is available to answer questions, discuss your current needs, verify insurance, and help determine an appropriate next step.
Frequently Asked Questions About Dual Diagnosis Treatment
Is dual diagnosis the same as co-occurring disorders?
Yes. Both terms describe the presence of a substance use disorder and one or more mental health conditions. “Co-occurring disorders” is generally the more clinical term, while “dual diagnosis” remains widely used by people searching for treatment.
Do I need a formal mental health diagnosis before calling?
You do not need to know the exact diagnosis before contacting Portland Treatment. Many people recognize that something is wrong but are unsure whether they are experiencing depression, anxiety, trauma, ADHD, withdrawal, medication effects, or another condition. An assessment can help clarify your symptoms and treatment needs.
Can Portland Treatment treat mental health conditions without substance use?
Portland Treatment’s dual diagnosis services are designed primarily for people whose mental health symptoms occur alongside substance use or addiction. Someone seeking treatment solely for a primary mental health condition should contact admissions so the team can determine whether Portland Treatment is an appropriate fit or whether a dedicated mental health provider would better meet their needs.
Can Portland Treatment help after drug-induced psychosis?
Potentially, once the person is medically and psychiatrically stable enough for outpatient treatment. Someone who is actively hallucinating, severely paranoid, disorganized, violent, unable to care for themselves, or otherwise unsafe needs immediate emergency or inpatient evaluation.
After stabilization, treatment can address the substance use that contributed to the episode, identify relapse risks, support medication adherence, and monitor continuing mental health symptoms.
Do I need detox before dual diagnosis treatment?
Some people do, while others can begin directly at the PHP, IOP, or outpatient level. The answer depends on the substance, amount and frequency of use, previous withdrawal history, current symptoms, medical conditions, and other medications.
Alcohol and benzodiazepine withdrawal can be medically dangerous. Do not abruptly stop either substance without appropriate medical guidance.
Are psychiatric medications allowed during treatment?
Yes, when they are appropriately prescribed and monitored. Medication management may be incorporated into treatment to evaluate effectiveness, side effects, adherence, safety, and interactions with substance use. Medication-assisted treatment may also be available for certain substance use disorders.
How long does dual diagnosis treatment last?
The length of treatment varies according to the severity of the conditions, level of care, progress, home environment, insurance coverage, and continuing support needs. Some clients transition from PHP to IOP and then outpatient treatment, while others enter at a lower level of care.
The goal is to provide enough structure to establish stability while helping the client gradually apply recovery skills more independently.
What should I do during a psychiatric emergency?
Call or text 988 for the Suicide & Crisis Lifeline. Call 911 or go to the nearest emergency department when there is an immediate danger, a suspected overdose, severe withdrawal, inability to remain safe, or another life-threatening situation.
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