Opioids are old friends to the healthcare professional. So much relief from pain and suffering can be attributed to the proper use of the opioid family that it saddens the industry that there is a flip side - misuse and abuse.
OUD involves the desire to acquire or consume opioids notwithstanding negative consequences and is based on the DSM-5 criteria (American Psychiatric Association, 2022b). OUD is associated with opioid tolerance, an overwhelming desire to take opioids, and withdrawal if opioids are stopped. Multiple treatment options for OUD exist and include individual and group therapy, 12-step programs, and pharmacotherapy, including naltrexone, methadone, and buprenorphine. The disease is associated with exacerbations and remissions, but the desire to use and the potential for relapse always exist.
Not everyone taking a particular medication or street substance is an addict. With opioids, especially, many label anyone on prescription analgesics as either an addict or an addict in the making. Opioids are an acceptable means of managing pain for short and long periods. It is an expectation that an individual utilizing them for legitimate reasons will, over time, begin to develop a physical tolerance for the medication. Upon abrupt discontinuation, they experience withdrawal-type symptoms as their metabolism adjusts to the absence of the opioid. Neither tolerance nor withdrawal makes an addict.
The motivation for use plays an important role in opioids. During an assessment, ask your client whether they benefit from their opioid beyond the relief of pain, including feelings of well-being, euphoria, relaxation, or a rise in mood beyond what may be attributed to pain relief. Frequently, those who utilize opioids for mood elevation or dissociation with current troubles will tell you outright if asked. Client survey tools such as the Current Opioid Misuse Measure (COMM) or SOAPP are available when client motivation for opioid use is uncertain.
OUD focuses on the detrimental consequences of repeated opioid use, along with an observable pattern of compulsion or cravings to use. OUD is diagnosed when opioid use persists and causes significant educational, occupational, or social impairment. Commonly abused opioids include heroin, codeine, fentanyl, morphine, opium, methadone, oxycodone, and hydrocodone.
Individuals with an OUD may show no acute symptoms that would trigger an inquiry into that person’s health history. Opioid users may also appear intoxicated or show signs of substance withdrawal. Opioid intoxication may appear as slurred speech, the appearance of being sedated, and the presence of pinpoint pupils. Those with tolerance may show few acute signs of opioid intoxication. Ongoing use of opioids tends to lead to a look of general poor health and debilitation. However, mild or moderate ongoing users may not have progressed to an appearance of reduced health.
Opioids may be ingested in many ways:
- Orally – either in a solution, as tablets, or powders.
- Intranasal – “sniffing” or “snorting.”
- Subcutaneous injection – “skin-popping.”
- Intramuscular – “muscling”
- Intravenous – “mainlining” or “shooting up.”
- Smoked–smoking opioids is the fastest way to the brain and is generally a mix of opioids with cannabis or tobacco.
Opioids purchased illegally risk contamination by improper handling or purposeful “cutting” or diluting the substance with other compounds. Injection users run a high risk of infection, both localized and systemic. HIV, hepatitis B, and hepatitis C are associated with opioid and other injectable substance use. Hepatitis C infection is also associated with intranasal inhalation of opioids and other substances, particularly in group settings where users pass around a shared beverage straw for snorting.
Physical examination for suspected opioid intoxication or opioid poisoning should include a search for the classic signs of opioid overdose, including the following:
- Depressed mental status
- Decreased respiratory rate
- Decreased lung tidal volume
- Decreased bowel sounds
- Constricted pupils
Drowsiness tends to follow the euphoria, and the sedation effect may progress to a coma. Inattention resulting from perceptual changes and the ability to concentrate may progress to ignoring potentially harmful events. In rare instances, intoxication may cause hallucinations with intact reality testing or auditory, visual, or tactile illusions without delirium.
For suspected acute opioid intoxication, laboratory studies should be included in the workup:
- Check immediate blood glucose for hypoglycemia, a condition that is often mistaken for opioid intoxication.
- Prescription opioids are often combined with acetaminophen; serum acetaminophen concentration should be checked along with liver enzymes to assess for acetaminophen hepatotoxicity.
- Serum creatine phosphokinase, kidney function, and electrolytes help assess for rhabdomyolysis (muscle breakdown) secondary to prolonged immobility, which is always a concern due to the intense sedative effects of opioids.
- Urine toxicology screens for opioids.
Table 4: Opioid Intoxication Diagnostic Criteria- Recent use of an opioid.
- Clinically significant problematic behavioral or psychological changes (e.g., euphoria followed by apathy, impaired judgment, dysphoria, psychomotor agitation, or retardation) developed during or shortly after use.
- Pupillary constriction (or pupillary dilation due to anoxia from severe overdose) and one (or more) of the following signs or symptoms developing during, or shortly after, opioid use.
- Drowsiness or coma
- Slurred speech
- Impairment in attention or memory
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(American Psychiatric Association, 2022a) |
Opioid intoxication diagnosis focuses on a significant negative impact and psychological and behavioral changes accompanying or following substance use. The presence of alcohol or sedatives in the person’s system can muddy the diagnosis; therefore, a naloxone challenge may be administered. Naloxone is a short-acting opioid antagonist that temporarily counters the respiratory depressant and, to a small degree, the sedative effects of opioids. The use of naloxone may put an opioid user into physical withdrawal, so caution should be used when administering (Jordan et al., 2024). It can be administered in a variety of ways, such as intravenously, intramuscularly, subcutaneously, or intranasally. It often works very quickly to reverse the effects of opioids. The Food and Drug Administration (FDA) has approved an autoinjector version of naloxone that can be used by family members, caregivers, or even bystanders (Jordan et al., 2024).
Table 5: Opioid Withdrawal Diagnostic Criteria- Presence of either of the following:
- Stopping or reducing opioid use that has been extreme and prolonged (i.e., several weeks or longer).
- Administration of an opioid antagonist following a time of opioid use.
- Three (or more) of the following arising within minutes to several days after the above criterion 1:
- Myalgia
- Dysphoric mood
- Insomnia
- Fever
- Nausea or vomiting
- Muscle aches
- Tearing or runny nose
- Pupillary dilation, sweating, or piloerection (raised or bristled hair on the back of the neck or skin)
- Diarrhea
- Yawning
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(American Psychiatric Association, 2022b) |
Opioid withdrawal can be a brutal affair. Withdrawal symptoms may begin immediately after administering an opioid antagonist (e.g., naloxone or naltrexone) or a partial opioid antagonist (e.g., buprenorphine). Stopping opioids after a prolonged period of use results in withdrawal symptoms around six hours after the last dose of a short-acting opioid and up to 48 hours after stopping a long-acting opioid, such as methadone. The peak of withdrawal tends to be within 24-48 hours, yet persists for up to ten days for the short-acting agents and up to 2-3 weeks for methadone, with sleep and mood disturbances often persisting for months. Many who have undergone opioid withdrawal compare it to severe influenza or viral gastroenteritis.
Opioid withdrawal is known to cause brief but severe episodes of depression that can lead to suicide attempts and completed suicide. Accidental opioid overdose, particularly among those desperate to avoid withdrawal, is common and should not be mistaken for a suicide attempt.