PS531 Unit 2 Co-Occurring Theory Paper Example

Which Came First, the Panic or the Pills?: A PS531 Unit 2 Paper Comparing Theories of Co-Occurrence Through Three Clients

[Student Name]

Purdue University Global

PS531: Co-Occurring Disorders and Treatments

Unit 2 Co-Occurring Theory Paper

[Instructor Name]

[Date]

The writer, the agency, the clients and every detail of the cases are composite and illustrative; the sources cited are real.

Why Theory Matters Here

Regier et al. (1990) showed how heavily the two kinds of disorder cluster in the same people: people with a drug disorder had several times the odds of a mental disorder, and people in treatment settings had the highest overlap of all. Prevalence alone does not explain why. The explanation matters because it changes what a clinician does first. If drinking is a response to anxiety, treating the anxiety may reduce the drinking. If drinking causes the anxiety, stopping it may make the anxiety fade. If both come from a shared cause, both need treatment and the shared cause needs attention. This paper takes three composite clients from our team and asks which explanation fits each best.

Client One: Dawn and the Self-Medication Hypothesis

Dawn is 44 and works the overnight shift at a hospital laundry in Escanaba. She has had panic attacks since her twenties and began taking her mother's leftover benzodiazepines, then drinking vodka, to get through the drive to work. Khantzian (1997) proposed that people do not choose substances at random; they are drawn to drugs whose effects relieve particular painful states. Sedatives and alcohol calm anxiety and agitation, stimulants can lift low energy and depression, and opioids can mute rage and emotional pain. Khantzian also argued that difficulties regulating feelings, self-esteem, relationships and self-care leave people more likely to turn to drugs.

Dawn's history fits this account closely. Her panic came first, by fifteen years, and her substances of choice are exactly those that calm. She describes vodka as "the only thing that turns down the alarm." If the self-medication account is right, treating her panic disorder effectively should reduce the pull toward sedatives.

Client Two: Travis and the Substance-Induced Pathway

Travis is 26 and was admitted to the hospital after three days of paranoia, convinced that his neighbors were filming him through the walls. He had been smoking methamphetamine daily for two months. Within ten days of stopping, the paranoia had faded. SAMHSA's treatment protocol distinguishes independent mental disorders from substance-induced ones, which arise during intoxication or withdrawal and usually improve within weeks once use stops (Substance Abuse and Mental Health Services Administration, 2020). The protocol advises clinicians to look at timing: which symptoms came first, and whether they linger once the person has gone several weeks without the substance.

Travis's psychosis began after the methamphetamine and faded when it stopped. The most likely diagnosis is a stimulant-induced psychotic disorder, not schizophrenia. The self-medication account would get this case backward.

Dawn's panic came fifteen years before her first drink; Travis's paranoia came two months after his first daily pipe. Timing sorted the theories before any test did.

Client Three: Leah and the Common Factor Model

Leah is 31 and has PTSD from childhood abuse and a severe alcohol use disorder that began at fourteen. Neither clearly preceded the other; both took hold in the same years, after the same events. A common factor model holds that shared causes, such as early trauma, genetic risk or chronic stress, raise the risk of both disorders independently. The protocol notes that trauma histories are common among people with co-occurring disorders and recommends trauma-informed care throughout (Substance Abuse and Mental Health Services Administration, 2020).

For Leah, asking which disorder caused the other may be the wrong question. The abuse helps explain both, and treatment that ignores it will treat symptoms of each without reaching their shared root.

Where the Theories Fall Short

Each theory explains one client well and the others poorly. Khantzian's account fits Dawn but not Travis. The substance-induced pathway fits Travis but says little about why Dawn started using. The common factor model fits Leah but could be stretched to fit almost anyone, which makes it hard to test. In practice, the theories often combine in one person: Leah may also drink to quiet nightmares, which is self-medication layered on a common cause, and heavy drinking may worsen her anxiety, which is a substance-induced effect.

The self-medication hypothesis has also been criticized for underestimating how substances themselves change mood and for being hard to test directly. Khantzian (1997) acknowledged that self-medication is one factor among several and argued that it remains clinically useful because it directs attention to clients' suffering.

Asking the Timing Questions

On our team, the timing questions are now part of every assessment. When did you first notice the anxiety, the low moods or the voices? When did you first drink or use regularly? Have there been stretches without drinking or using, and what happened to your mood then? Did any symptoms appear only while using, or only in the days after stopping? Family members can help, since clients often remember the order of events differently from the people around them. A notebook timeline drawn with the client, with years across the top and symptoms and substances marked below, often makes the order clear in a way that conversation alone does not. These questions take ten minutes at most, and most clients answer them readily. They do not settle every case, but they keep clinicians from assuming the same explanation for everyone, and they set up a plan to recheck symptoms after a period of abstinence.

What Each Theory Changes in Treatment

For Dawn, treating panic disorder with cognitive behavioral therapy and, if her prescriber agrees, a medication that does not carry dependence risk is central, along with a supervised taper from the benzodiazepines. For Travis, the first goal is abstinence from methamphetamine and close observation; antipsychotic medication may be needed short term, but a long-term schizophrenia diagnosis should not be given unless symptoms persist. For Leah, integrated, trauma-informed treatment that addresses PTSD and drinking together is the most logical course.

Conclusion

The three clients show that no single theory explains co-occurrence. Regier and colleagues' prevalence data show the overlap is real and large. Khantzian's self-medication hypothesis explains clients whose suffering came first and whose substances match it, SAMHSA's account of substance-induced disorders explains clients whose symptoms follow use and fade without it, and a common factor model explains clients whose disorders share a root. Asking about timing first is the most practical way to decide which explanation guides treatment.

References

Khantzian, E. J. (1997). The self-medication hypothesis of substance use disorders: A reconsideration and recent applications. Harvard Review of Psychiatry, 4(5), 231-244. https://doi.org/10.3109/10673229709030550

Regier, D. A., Farmer, M. E., Rae, D. S., Locke, B. Z., Keith, S. J., Judd, L. L., & Goodwin, F. K. (1990). Comorbidity of mental disorders with alcohol and other drug abuse: Results from the Epidemiologic Catchment Area (ECA) study. JAMA, 264(19), 2511-2518. https://doi.org/10.1001/jama.1990.03450190043026

Substance Abuse and Mental Health Services Administration. (2020). Substance use disorder treatment for persons with co-occurring disorders (Treatment Improvement Protocol Series, No. 42; SAMHSA Publication No. PEP20-02-01-004).