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Opioids & Dementia: New Study Finds Strong Link

Does pain relief risk cognitive cost? A major new study of almost 200,000 people says yes—and the price may be higher than we thought.
National Opioid Crisis Community Summit

Researchers analyzed data from nearly 200,000 participants in the UK Biobank who live with chronic non-cancer pain. Their goal? To understand how regular opioid use affects the brain over time.

🔍 What They Found:

  • People who regularly used opioids had a 20% higher risk of developing dementia.
  • Those using strong opioids had a 72% higher risk of all-cause dementia.
  • In the case of specific types of dementia, they had a 155% higher risk of vascular dementia.
  • Brain scans showed reduced volumes in key areas like the hippocampus and white matter—regions critical for memory and thinking.
  • Cognitive tests revealed lower fluid intelligence among regular opioid users.

🧠 The Brain Connection: Opioids interact with receptors in the brain that regulate pain, but they may also disrupt areas involved in memory and decision-making. The hippocampus, a key memory center, appears particularly vulnerable.

💬 What Researchers Say: “Our findings underscore the importance of weighing the cognitive risks of opioid use when managing chronic pain,” said lead author Dr. Feng Sha. “The risk increases with opioid strength, and the impact on brain structure and function is significant.”

💊 Which Opioids Were Studied?

The study grouped opioids into strong and weak categories. Below are the ones specifically referenced, with both generic and common brand names:

💊 Strong Opioids

Generic Name Common Brand Name(s)
Morphine MS Contin, Kadian, Roxanol
Buprenorphine Suboxone, Butrans, Belbuca
Oxycodone OxyContin, Percocet, Roxicodone
Fentanyl Duragesic, Actiq, Sublimaze

💊 Weak Opioids

Generic Name Common Brand Name(s)
Codeine Tylenol with Codeine, Robitussin AC
Tramadol Ultram, ConZip

🔎 Strong opioids were linked to the highest dementia risk—especially vascular dementia.

📣 What’s Next? The study calls for deeper research into the biological mechanisms behind these effects. It also urges doctors and patients to discuss cognitive risks when considering long-term opioid therapy.

💬 Bottom Line:

If you or a loved one is living with chronic pain, pain relief is essential—but so is protecting your brain. Start the conversation with your healthcare provider about safe and effective alternatives. And as always, Alzheimer’s Weekly is here to support you—week by week.

🧘‍♀️ Safer Pain Relief & Caregiver Tips

A helpful sidebar from Alzheimer’s Weekly

💡 Safer Pain Relief Options

  • Physical Therapy – Gentle movement improves strength and flexibility.
  • Targeted Injections – Corticosteroids or nerve blocks for focused relief.
  • Mindfulness & CBT – Mental tools to reduce the perception of pain.
  • Massage & Acupuncture – Non-drug approaches with proven results.
  • Heat & Cold Therapy – Great for arthritis, joint pain, and inflammation.

👩‍⚕️ Tips for Caregivers

  • Watch for signs of overmedication like confusion or dizziness.
  • Ask providers, “Are there non-opioid alternatives we could try?”
  • Promote gentle, consistent movement to help with pain and independence.
  • Create a calm environment to ease tension and support healing.
  • Remember: Caregivers need care, too. Schedule breaks, ask for help, and connect with support groups.

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Peter Berger

With experience in dementia caregiving, public education, and Alzheimer’s-focused writing—and a professional research background shaped in what many consider one of the world’s top laboratories—I work to make complex findings clear, practical, and genuinely helpful for families and professionals providing care.

This site was inspired by my Mom’s autoimmune dementia.

It is a place where we separate out the wheat from the chafe, the important articles & videos from each week’s river of news. Google gets a new post on Alzheimer’s or dementia every 7 minutes. That can overwhelm anyone looking for help. This site filters out, focuses on and offers only the best information. it has helped hundreds of thousands of people since it debuted in 2007. Thanks to our many subscribers for your supportive feedback.

The site is dedicated to all those preserving the dignity of the community of people living with dementia.

Peter Berger, Editor

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Alzheimer’s & Dementia Weekly was inspired by my mother’s journey with autoimmune dementia and my dad’s with Parkinson’s dementia.

Walking beside them opened my eyes to the confusion, the courage, and the deep humanity found in families and professionals caring for someone they love.

Since its debut in 2007, this site has had one clear mission:
to separate the wheat from the chaff — to highlight only the most essential articles, studies, tools, and videos from the overwhelming river of dementia-related information.
(At last count, Google receives a new post on Alzheimer’s or dementia every seven minutes.) For anyone seeking clarity or support, that constant flow can be exhausting and discouraging.

Alzheimer’s Weekly filters, translates, and explains what matters most, helping hundreds of thousands of families, clinicians, and care teams around the world make sense of the latest research and best practices.

This site is dedicated to everyone who works—often quietly and tirelessly—to preserve dignity in the community of people living with dementia.


About the Editor

With experience in dementia caregiving, public education, and Alzheimer’s-focused writing—and a professional research background shaped in what many consider one of the world’s top laboratories—I work to make complex findings clear, practical, and genuinely helpful for both families and professionals providing care.

My goal is simple:
Translate the best science into guidance that lightens the load, strengthens understanding, and helps every person with dementia live with dignity.

Peter Berger
Editor, Alzheimer’s Weekly

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