What Are Opioids?

Both politicians and medical doctors are weighing in on opioid use and misuse. But exactly what are opioids, and how and when should they be used?

what are opioids

Deaths from opioid overdoses nearly doubled between 2009 and 2015 in the United States, according to a recent study.

© Karen Foley | Dreamstime

What are opioids? That’s simple: Morphine, oxycodone, hydrocodone, codeine, and fentanyl are opiods. Heroin is an illegal opioid. Opioids are derived from the opium poppy (or synthetic derivatives) and act on the nervous system to relieve pain.

What’s not so simple is why the United States is in the midst of an epidemic of opioid misuse and overdose. We consume 99 percent of all hydrocodone in the world. Hydrocodone is the most commonly prescribed opioid pain reliever anywhere.

What are opiods good for? Opioids are generally effective on pain, and physicians have to be able to prescribe drugs that can relieve pain. However, opioid use can lead to psychological dependence and physical addiction. Doctors also have to guard against what some believe to be restrictive laws that keep them from prescribing pain medications for patients who truly need them.

Opioids are not effective for all patients with chronic pain, but patients frequently develop dependency despite the drugs not working for their pain.

What Are Opioids’ Negative Effects?

Opioids can produce significant side effects, including drowsiness, dizziness, and constipation. Opioids raise also the risk of bone fractures in older adults. One study showed that the annual fracture rate in the over-age-60 group increased from four to 10 percent among those taking opioid drugs.

In another study, one-third of cancer patients using opioids scored lower on measures of confusion, disorientation, and forgetfulness.

A third study showed that older patients who took drugs, such as codeine and oxycodone, after short hospital stays had an increased risk of becoming long-term narcotic users.

A 2017 study in the journal Pediatrics reported that close to 70 percent of prescription opioid medications are kept in homes with children 17 and under where the drugs are not stored safely. The practice can lead to accidental ingestion among younger children and pilfering by high-school students. The findings support the need for more education and developing technology, such as “smart” packaging.

CDC Recommendations

The Centers for Disease Control and Prevention (CDC) issued new recommendations in 2016 for prescribing opioid medications for chronic pain. The recommendations are in response to the epidemic of overdose deaths in the United States, where more than 40 Americans die each day from prescription opioid overdoses.

Prescribing these drugs for chronic pain is a key driver of the country’s epidemic, according to the CDC. Among the 12 CDC recommendations, three principles are directly related to patients suffering from chronic pain:

  • Non-opioid therapy is preferred for chronic pain, other than for cancer, palliative care, and end-of-life care.
  • When opioids are used, the lowest possible effective dosage should be prescribed to reduce the risk of opioid use disorder and overdose.
  • Providers should exercise caution when prescribing opioids and monitor all patients closely.

Some doctors are hesitant to prescribe opioids, both for medical and legal reasons, even though several studies have shown that the probability of addiction among chronic pain patients without a history of substance abuse is low.

Proponents of opioids argue that withholding them causes unnecessary pain, that side effects can be managed, and that the risk of addiction is overstated.

The American Academy of Neurology has taken a different position, saying the risk of opioids outweighs the benefits for conditions, such as headaches, low back pain, and fibromyalgia.


This article was originally published in 2017. It has since been updated. 


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Jim Brown, PhD

As a former college professor of health education, Jim Brown brings a unique perspective to health and medical writing. He has authored 14 books on health, medicine, fitness, and sports. … Read More

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