Pain Management And Addiction

July, 2013

Studies indicate that chronic pain and substance use disorders (SUDs) frequently co-occur (Chelminski et al., 2005; Rosenblum et al., 2003; Savage, Kirsh, & Passik, 2008); as such, addiction counselors who are knowledgeable about pain issues can provide better care for clients challenged by the need for assistance with pain control as well as substance abuse or dependence. This issue of the ATTC Messenger provides a basic overview of how pain and addiction can intersect and overlap. Much of the information derives from SAMHSA’s TIP 54 “Managing Chronic Pain in Adults With or in Recovery from Substance Use Disorders .”Comorbid chronic pain and SUDs require collaborative care including behavioral health, primary care, and often physical or occupational therapy and a consultation with pharmacy. Contributing to significant health care costs and misuse of services, these conditions will certainly demand that primary care and behavioral health rethink the current silos in which they operate as payment and systems reform unfold.

Cronic Pain

Chronic pain and addiction have many shared neurophysiological patterns. Most chronic pain involves abnormal neural processing. Similarly, addiction results when normal neural processes, primarily in the brain’s memory, reward, and stress systems, are altered into dysfunctional patterns. A full understanding of each condition is still emerging, and there is much to be learned about these conditions and their etiology, course of development, patterns of severity, interactions, and response to treatment.

Chronic pain and addiction are not static conditions. Both fluctuate in intensity over time and under different circumstances often require ongoing management. Treatment for one condition can support or conflict with treatment for the other; a medication that may be appropriately prescribed for a particular chronic pain condition may be inappropriate given the patient’s substance use history.
Chronic pain and substance use disorders (SUDs) also have similar physical, social, emotional, and economic effects on health and well being (Green, Baker, Smith, & Sato, 2003). Patients with one or both of these conditions may report insomnia, depression, impaired functioning, and other symptoms. Effective chronic pain management in patients with or in recovery from SUDs must address both conditions simultaneously (Trafton, Oliva, Horst, Minkel, & Humphreys, 2004).

Pain and responses to it are shaped by culture, temperament, psychological state, memory, cognition, beliefs and expectations, co-occurring health conditions, gender, age, and other factors. Because pain is both a sensory and an emotional experience, it is by nature subjective. Pain may be acute (e.g., postoperative pain), acute intermittent (e.g., migraine headache, pain caused by sickle cell disease), or chronic (persistent pain that may or may not have a known etiology). These categories are not mutually exclusive; for example, acute pain may be superimposed on chronic pain.

Continued pain can trigger emotional responses, including sleeplessness, anxiety, and depressive symptoms, which in turn produce more pain. Such feedback cycles may continue to cause pain after the physiological causes have been addressed. Several studies show that the outcome of pain treatment is worse in the presence of depression, or when depression does not respond to treatment, and that the future course of pain syndromes can be, in part, predicted by emotional status (Center for Substance Abuse Treatment, 2012). Physical inactivity and a lack of engagement with life may also lead to increased levels of anxiety, depression, and an increased risk for suicidal ideation; this may in turn lead a person to use substances in an attempt to treat themselves.

The Cycle of Chronic Pain and Addiction

If use of a prescription pain medication (i.e. opioid analgesics) results in physical dependence, the person may experience increased pain when the substance is absent along with withdrawal symptoms (e.g., anxiety, nausea, cramps, insomnia). Withdrawal symptoms may lead to an increase in symptoms of depression and an increase in the potential risk for suicide. Ingesting more of the drug that caused the dependence relieves many of these symptoms. A similar situation may occur if the drug is one that elicits rebound symptoms. For example, ergot relieves migraines, but excessive use leads to rebound headaches that are more persistent and treatment resistant than were the original headaches.

In some people, a cycle develops in which pain or distress elicits severe preoccupation with the substance that previously provided relief. This cycle—seeking pain relief, experiencing relief, and then having pain recur—can be very difficult to break, even in the person without an addiction, and the development of addiction markedly exacerbates the difficulty.
Addiction to prescription pain medication is widely misunderstood and part of working with chronic pain sufferers is helping to educate them. Below are two common misunderstandings that your clients may hold:

1. “If I need higher doses or have withdrawal symptoms when I quit, I’m addicted.”

Many people mistakenly use the term “addiction” to refer to physical dependence. That includes doctors. "Probably not a week goes by that I don’t hear from a doctor who wants me to see their patient because they think they’re addicted, but really they’re just physically dependent,”said Scott Fishman, MD, professor of anesthesiology and chief of the division of pain medicine at the University of California, Davis School of Medicine, interviewed for an article on WebMD. In the same article, Susan Weiss, PhD, chief of the science policy branch at the National Institute on Drug Abuse notes, “Physical dependence, which can include tolerance and withdrawal, is different. It’s a part of addiction but it can happen without someone being addicted.” She adds that if people have withdrawal symptoms when they stop taking their pain medication, "it means that they need to be under a doctor’s care to stop taking the drugs, but not necessarily that they’re addicted”(Hitti, 2011).

2. “Everyone gets addicted to pain drugs if they take them long enough.”

“The vast majority of people, when prescribed these medications, use them correctly without developing addiction,” said Marvin Seppala, MD, chief medical officer at the Hazelden Foundation (Hitti, 2011).

Dr. Weiss elaborates more about the complexities, commenting, “I think where it gets really complicated is when you’ve got somebody that’s in chronic pain and they wind up needing higher and higher doses, and you don’t know if this is a sign that they’re developing problems of addiction because something is really happening in their brain that’s ... getting them more compulsively involved in taking the drug, or if their pain is getting worse because their disease is getting worse, or because they’re developing tolerance to the painkiller”(Hitti, 2011).

Primary Care Issues in Treating Pain in SUD Patients

Providing pain control for the 5% to 17% of the U.S. population with a substance abuse disorder presents primary care physicians with unique challenges that may be helpful for addiction counselors to understand. These include:

  • When these individuals experience pain, they are less likely to receive adequate pain management than the general population.

  • Inadequate pain relief is a significant risk factor for relapse.

  • Distinguishing between patients who are seeking pain relief and those seeking drugs for the euphoric effects and identifying tolerance and physiologic. Dependence is critical to effective care and pain control. Comorbid psychiatric and medical illnesses may complicate effective pain management (Prater, Zylstra , Miller, 2002).

Further, most doctors do not have much training in addiction, or in pain management for that matter. Most addiction counselors do not have much training in pain management. Working together may be key for successfully treating patients.

SAMHSA’s TIP 54 (as noted previously) presents a consensus panel’s recommended strategy for treating chronic pain in adults who have or are in recovery from a substance use disorder.

Collateral information is an important part of the assessment of pain treatment in primary care, as it is with addiction treatment. Clinicians should communicate with families, pharmacists, addictions counselors and other clinicians, after the patient has given consent. If the patient declines to give consent, prolonged treatment with controlled pain medications may be contraindicated. Collateral information also helps protect the patient from misusing medications.

Addiction counselors should keep in mind that several factors may complicate a physician’s assessment of pain levels:

  • Clinicians are especially likely to underestimate—and, therefore, to undertreat—pain and disability in women, the elderly, minorities, people of low economic status, and people with SUDs (Green, Baker, Smith, & Sato, 2003; Rupp & Delaney, 2004).
  • Some patients with histories of SUDs may over report their pain experience if they are afraid that they will be under-medicated or that their symptoms will not be taken seriously.

  • Others may under report their pain experience if they are afraid they will be prescribed medications that will cause them to relapse.

  • Some patients may exaggerate pain and disability to obtain opioids for reasons other than pain control.

Each of these challenges may be addressed with clinic policies and procedures for comprehensive and regular assessment, improved provider patient communication, and collaborative care protocols allowing the PC providers to interact with the behavioral health staff and counselors. Clinicians must assess all patients who have chronic pain at regular intervals because treatment needs can change. For example, a patient may develop tolerance to a particular opioid, or the underlying disease condition may change or worsen.

In a recovering individual, the fear of experiencing withdrawal can be a substantial block to successful discontinuation of medication when it is no longer needed for pain control. Successful management of these concerns may be accomplished by slowly tapering medications over several days under close supervision as well as working with a pain and/or addiction medicine specialist who is able to suggest alternate pharmacotherapy that isn’t addictive to help manage the withdrawal. In certain cases, short-term admission to a detoxification unit may be necessary.

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Additional Resourses on Pain Management and Addiction

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