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Borderline Personality Disorder (BPD) and Addiction: Dual Diagnosis Treatment at Meridian Recovery

Borderline personality disorder (BPD) is one of the most misunderstood and undertreated mental health conditions today, despite the severe emotional distress it causes. Those with BPD typically suffer from very intense fears of abandonment, experience unstable relationships, and feel as if their emotions are overwhelming and come out of nowhere. Anyone who is living with BPD can easily see how substance use seems like an ideal source of relief.

If you are one of those people or know someone who is, please know that there is help available for you. Meridian Recovery offers an integrated dual diagnosis treatment approach for both BPD and substance use disorders concurrently to treat both issues as part of the same recovery process and work to ensure that neither condition continues to worsen the other.

What Is Borderline Personality Disorder?


According to the DSM-5, borderline personality disorder (BPD) is defined by a consistent pattern of very intense and unstable interpersonal relationships, chronic feelings of emptiness, unstable or shifting self-image, significant levels of impulsivity, and extreme emotional reactions that are not proportional to the stressor.[1]

Approximately 1.6% to 5.9% of the general population suffers from BPD, and the frequency of BPD increases significantly amongst people seeking treatment for mental health and addiction issues.[2] BPD is a clinically recognized psychiatric disorder with scientifically proven and effective interventions available to treat it, not a character defect or something a person chooses.

 

Signs and Symptoms of BPD


BPD presents differently for each person that has it, but the following are common signs:

  • Intense fear of being abandoned, real or imagined, to the point of engaging in frantic efforts to prevent abandonment from happening.
  • Frequent patterns of unstable, intense interpersonal relationships that alternate between extreme idealization and devaluation.
  • An unstable or shifting sense of self.
  • Impulsive behavior, such as spending large amounts of money, abusing drugs and alcohol, reckless driving, or binge eating.
  • Frequent self-harm or suicidal thoughts.
  • Mood swings that can change by the hour.
  • Chronic feelings of emptiness.
  • Extreme outbursts of anger that the person may have difficulty controlling.
  • Dissociation or feeling detached from themselves during periods of extreme distress.

Building Healthier Relationships and Emotional Patterns

Building healthy relationships and managing emotions is one of the biggest struggles faced by individuals with borderline personality disorder (BPD). Intense emotions, fear of abandonment, and difficulty with trusting people can create patterns that feel unmanageable and/or overwhelming. When substance use is factored in with these patterns, they can become increasingly complex.

Treatment provides support for developing stronger interpersonal skills such as setting boundaries, better communication, and managing conflict in more constructive ways. By learning how to pause before acting and respond to situations more thoughtfully, people with BPD can significantly increase the stability of their relationships.

Over time, individuals also begin to build a stronger sense of identity and self-understanding. Instead of relying on external validation (or substances) to cope emotionally, they identify and rely on their internal resources that will support ongoing emotional stability. The result of these changes will not only create a better quality of life for the individual, but will help cultivate greater support and stability within the person’s social circle.

BPD is not a life sentence, and neither is addiction. With the right integrated care, people with co-occurring BPD and substance use disorder can develop better means of managing their emotional experience, build stronger relationships, and find sustainable recovery. Meridian Recovery is here to help you take that first step. Our admissions team can answer your questions, verify your insurance, and help you find the level of care that is right for where you are right now.

OCD and Substance Abuse


There is a well-established relationship between obsessive-compulsive disorder (OCD) and co-occurring substance use disorders (SUDs). A large study published in 2022 in JAMA Network Open indicates a 3.7-times increased risk of substance abuse among OCD patients versus the general population.[4] 

One of the major reasons for this association is that people with OCD use substances to self-medicate.[5] Alcohol, cannabis, and opioids can temporarily reduce anxiety and obsessive thinking. Eventually, however, substance use has a negative effect on the underlying OCD condition, increasing impulsive behavior and creating a new cycle of craving and withdrawal that adds to their distress.

The relationship between OCD and substance abuse is bidirectional and complicated. Using substances will reduce obsessive-compulsive symptoms for a short period of time, but in the long term, it continues to reinforce substance abuse, interferes with the serotonin system (which is thought to be involved in the development of OCD), increases the degree of impulsivity that makes resisting compulsions and cravings more difficult, and worsens anxiety and intrusive thoughts during withdrawal.[6] 

Because of this, treating OCD and addiction as separate disorders typically does not work.



OCD and Alcohol Abuse

Alcohol is the most commonly used substance abused by people with OCD.[7] Alcohol is often used to self-medicate for chronic anxiety and intrusive thoughts because it produces calming effects, which interrupt obsessive thoughts and reduce the need to perform compulsive behaviors. 

However, the effects of alcohol are short-lived. Alcohol interferes with sleep, which reduces the cognitive control required to handle obsessive thoughts, and produces very high levels of anxiety when a person stops drinking, which can greatly exacerbate obsessive-compulsive symptoms.[8] For people with both OCD and alcohol abuse, dual diagnosis treatment that addresses both the neurobiological and psychological aspects of OCD and SUD is critical for continued recovery.

 

Compulsive Behavior vs. Addiction

Both OCD and addiction involve repetitive behaviors that are hard to control. As a result of this similarity, some people wonder whether they are experiencing one condition, the other, or both. It is important to understand the difference because it affects treatment.

A person with OCD has compulsive behaviors because of anxiety, and they engage in the behaviors to prevent some type of threatened consequence. They do not enjoy the compulsive behaviors that they perform, but the anxiety they experience when thinking about not performing the behaviors is so overwhelming that they cannot stop performing them.

In contrast, a person with addiction initially engages in substance use for the rewards and pleasures associated with it. They want to experience the high, the energy, or the calming effects produced by the drug, or may be consuming them to avoid withdrawal symptoms. Many people with OCD also have a substance use disorder because they were using substances to self-medicate, and, over time, they become physiologically and psychologically dependent on them. 

When a person is suffering from both conditions, both conditions require attention from a qualified mental health professional. If only one condition is treated, the other can make recovery more difficult and increase the risk that symptoms will continue or return over time.

Are people with BPD prone to addiction?

Yes. Research confirms that people with BPD have higher rates of developing a SUD than the general population. The symptoms of BPD (impulsiveness, emotional dysregulation, and intense distress) drive many to self-medicate when coping with the disorder.

What drugs do people with BPD abuse?

People with BPD have a tendency to misuse substances that provide quick relief from the distressful emotional experience associated with the negative dysregulation of BPD. Alcohol, opiates, cannabis, and benzodiazepines are the most commonly abused substances. While some use stimulants, the majority use substances to self-medicate for overwhelming emotional experiences, chronic feelings of emptiness, and interpersonal distress.

What aggravates borderline personality disorder?

Symptoms typically worsen due to feelings of perceived or actual rejection or abandonment, experiencing significant stress, having insomnia or sleep deprivation, engaging in interpersonal conflict, and using substances. Using substances typically has an especially destabilizing effect because it increases the level of emotional dysregulation and impulsivity that exists for each person with BPD.

Can BPD be cured?

BPD does not typically have a standard “cure” in the way some diseases do, but it is a highly treatable disorder. Most people with BPD will find that they begin to develop meaningful and quantifiable improvement in their quality of life due to the effectiveness of evidence-based treatments like DBT. Through integrated co-occurring care, many have been able to live a stable, fulfilling life of recovery.

Sources

[1] [8] National Institute of Mental Health. (n.d.). Borderline personality disorder. https://www.nimh.nih.gov/health/publications/borderline-personality-disorder

[2] [3] Zimmerman, M. (2026). Borderline personality disorder (BPD). MSD Manual Professional Edition.https://www.msdmanuals.com/professional/psychiatric-disorders/personality-disorders/borderline-personality-disorder-bpd

[4] [5] [6] Substance Abuse and Mental Health Services Administration. (2014). Substance use disorders and borderline personality disorder. https://library.samhsa.gov/sites/default/files/sma14-4879.pdf

[7] Silva, S. G., et al. (2026). Prevalence of alcohol use disorders in individuals with borderline personality disorder: A meta-analysis and meta-regression study. São Paulo Medical Journal. https://www.emjreviews.com/general-healthcare/news/strong-link-between-borderline-personality-disorder-and-alcohol-use/