Potent Synthetic Opioids Driving Current Overdose Crisis

PainRelief.com Interview with:
Shravani Durbhakula, MD, MPH, MBA
Associate Professor of Anesthesiology, 
Division of Pain Medicine 
Vanderbilt University School of Medicine 
Medical Director, Comprehensive Pain Service 
Vanderbilt University Medical Center 

Shravani Durbhakula, MD, MPH, MBA
Associate Professor of Anesthesiology, 
Division of Pain Medicine 
Vanderbilt University School of Medicine 
Medical Director, Comprehensive Pain Service 
Vanderbilt University Medical Center 
Dr. Durbhakula

PainRelief.com: What is the background for this study?

Response: Our study highlights the rapid rise of nitazenes—extremely potent and dangerous synthetic opioids—silently driving the current overdose crisis. Developed in the 1950s by a pharmaceutical company and never approved for clinical use, nitazenes are up to 20 times more potent than fentanyl and are undetectable with standard drug tests available in emergency rooms.

These opioids are often mixed into counterfeit pills or other street drugs, posing an unseen threat. Furthermore, nitazenes interact with opioid receptors in a unique way, increasing overdose risk, heightening respiratory depression, and accelerating tolerance development, which makes them even more dangerous for users.

University of Sydney Study Finds Brainstem Contains a Circuit that can Produce Pain Relief in Specific Body Parts

PainRelief.com Interview with:

Lewis Crawford, B.Sci (Hons), PhD
Postdoctoral associate
Neural Imaging Laboratory | Faculty of Medicine and Health
Brain and Mind Centre
THE UNIVERSITY OF SYDNEY 

Dr. Crawford

PainRelief.com: What is the background for this study?

Response: The overall aim of our research is to determine the functioning of analgesic circuits in individuals with chronic pain. If we can identify these circuits, we will then in a position to activate them to produce pain relief. One way to explore analgesic circuits in humans is through the use of placebo analgesia paradigms.

Adjusting Gait May Help Provide Pain Relief from Knee Osteoarthritis

PainRelief.com Interview with:

Valentina Mazzoli, Ph.D
Assistant Professor
Department of Radiology-CBI
Translational Research Building
NYU Grossman School of Medicine

Dr. Mazzoli

PainRelief.com: What is the background for this study? What are the main findings?

Knee osteoarthritis is a very common and painful condition that limits mobility and is a leading cause of disability worldwide. Unfortunately, there are no disease-modifying treatments available. Symptoms are usually managed with painkillers, and in the most severe cases, with knee replacement surgery?

In our study, we showed that subtly adjusting the angle of the foot during walking may be an easy, inexpensive way to reduce knee pain in people with early-stage osteoarthritis.

ICAHN Mount Sinai Analysis Suggests Women Should Be Careful About Using Acetaminophen During Pregnancy

PainRelief.com Interview with:
Diddier Prada, MD, Ph.D. 
Assistant Professor 
Institute for Health Equity Research
Department of Population Health Science and Policy 
Department of Environmental Medicine
Icahn School of Medicine at Mount Sinai 
New York City, NY, USA
https://scholars.mssm.edu/en/persons/diddier-prada

PainRelief.com: What is the background for this study?

Response: Earlier research has indicated that using acetaminophen (such as Tylenol) during pregnancy might increase the likelihood of children developing neurodevelopmental conditions like autism or ADHD.

Data shows that more than half of pregnant women rely on acetaminophen in some regions. Various well-conducted studies, including long-term group observations and case-comparison analyses, have identified a potential association, though some found no relationship, and a few even hinted at a possible protective effect. However, these studies often faced challenges, such as depending on mothers’ memory for usage data, failing to consider underlying reasons for taking the drug (e.g., illness or fever), or employing inconsistent approaches, which complicates drawing firm conclusions. By applying a transparent and consistent framework, the Navigation Guide methodology, to assess the studies’ quality, credibility, and evidence strength, we aimed to offer a more reliable overview than previous reviews.

Study Finds Gabapentin for Chronic Low Back Pain Associated with Increased Risk of Dementia

PainRelief.com Interview with:
Nafis B Eghrar,  MS4
Case Western Reserve University School of Medicine
Cleveland, Ohio

Nafis B Eghrar,  MS4
Case Western Reserve University School of Medicine
Cleveland, Ohio

PainRelief.com: What is the background for this study?

Response: Gabapentin has shown promise in treating nerve-related pain, and it has become a popular choice to treat chronic low back pain, despite limited evidence. Currently, there is a discrepancy on whether taking gabapentin increases a patient’s risk for developing dementia.

Our main findings were that gabapentin prescription was associated with an increased risk for dementia and mild cognitive impairment. This risk was pronounced in younger adults (age 18-64). Moreover, the incidence of dementia and mild cognitive impairment was higher in those prescribed gabapentin 12+ times compared to those prescribed gabapentin 3-11 times. 

Innovations in Diagnostic Imaging for Lower Back Pathologies

Diagnosing lower back conditions and pathologies continues to become more accurate and less intrusive, with recent innovations offering alternatives to the traditional MRI scan. Some conditions are easy to diagnose without technology, with trained doctors able to spot the telltale signs of conditions such as spondylolisthesis based on the patient’s symptoms. However, some issues are much harder to detect, which is why scientists are continuously improving diagnostic imaging solutions to detect hidden problems.

We’ll guide you through modern diagnostic imaging methods for identifying lower back pathologies, considering the advantages and limitations. By spotting conditions early, patients can avoid life-changing symptoms and receive treatment before invasive surgery is required. Surgery for severe spinal stenosis and spondylolisthesis brings many risks, but early diagnosis can significantly reduce the number of people who require such procedures.

Person lying on scanner

Diagnostic Imaging for Lower Back Conditions

There are a number of existing diagnostic imaging methods that have been used for many years, with some of these technologies more modern and more effective than others. Here’s a summary of existing methods.

  1. X-rays (Radiographs)

X-rays are the most basic and commonly used initial imaging method for lower back problems. They’re typically the first-line imaging for trauma, suspected fractures, or obvious structural abnormalities.

X-rays are best used for:

  • Bone fractures and alignment issues
  • Spondylolisthesis (vertebral slippage)
  • Degenerative changes in spine structure
  • Scoliosis and other spinal deformities
  • Osteoporosis-related compression fractures

X-rays are limited as they cannot visualize soft tissues like muscles, ligaments, or discs, and they are not effective at detecting early degenerative changes. They also only provide basic structural information, and there is a very small risk of radiation exposure.

Walking More May Reduce Risk of Chronic Low Back Pain

PainRelief.com Interview with:
Rayane Haddadj, PhD Candidate
Department of Public Health and Nursing
Norwegian University of Science and Technology

PainRelief.com: What is the background for this study?

Response: Low back pain is the leading cause of disability worldwide and accounts for the highest healthcare spending in the Unites States.

Given its widespread impact, identifying modifiable risk factors – those that can be addressed through public health policy and targeted interventions – is therefore of great importance for reducing the burden of this condition.

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Indiana University Study Finds Tylenol has Unexpected Effect on Endocannabinoids for Pain Relief

PainRelief.com Interview with:
Alex Straiker Ph.D.
Associate Research Scientist, Psychological and Brain Sciences
Adjunct Instructor, Psychological and Brain Sciences
Department of Psychological and Brain Sciences
Gill Institute for Neuroscience, Indiana University
Bloomington, IN 47405, USA

Alex Straiker

PainRelief.com: What is the background for this study?

Response: Acetaminophen has been used to relieve pain since the late 19th century and became available around the world during the 1950s and 1960s. In the United States, it’s known as Tylenol (introduced in 1955), while in most other countries it’s referred to as paracetamol.

It is considered generally safe and remains one of the most widely used medications in the world. However, it still contributes to a significant number of deaths due to liver failure. In fact, in many countries, acetaminophen-related toxicity is the leading cause of acute liver failure.

What’s surprising is that, despite its long history and widespread use, we still don’t fully understand how acetaminophen works.

Scientists have proposed several mechanisms of action involving serotonin pathways and cyclooxygenase (COX) enzymes.  Several lines of evidence point to the body’s natural cannabis-like chemicals, called endocannabinoids.

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Acute Pain: Potential Impact of an Effective Non-Opioid Treatment to Reduce Opioid-Related Harm and Economic Burden

PainRelief.com Interview with:
Vertex Spokesperson

PainRelief.com: What is the background for this study?

Response: This study had two primary aims: (1) to provide a contemporary estimate of the societal costs of the opioid epidemic, and (2) to quantify the portion of the opioid epidemic attributable to new prescription opioids for acute pain from 2025 onwards and evaluate the potential impact of an effective non-opioid pain medication for acute pain in reducing the burden associated with the US opioid epidemic.

The United States continues to grapple with a devastating opioid epidemic. Despite growing awareness of long-term opioid risks, nearly 40 million Americans continue to receive prescription opioids for acute pain each year, and even short-term use can lead to misuse, opioid use disorder (OUD), or overdose. In 2022 alone, nearly 108,000 people died from drug overdoses — about 82,000 (~76%) involving opioids.  Overall, it is estimated that the opioid epidemic will cost ~$370B in 2025 – more than double the commonly cited 2018 estimate of $180B.

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Penn State Study Evaluates CBT vs Mindfulness for Opioid-Dependent Chronic Low Back Pain

PainRelief.com Interview with:
Aleksandra E. Zgierska, MD, PhD
Jeanne L. and Thomas L. Leaman, MD, Endowed Professor and Vice Chair for Research
Department of Family and Community Medicine
Professor, Department of Public Health Sciences
Professor, Department of Anesthesiology and Perioperative Medicine
Penn State College of Medicine, Hershey, Pennsylvania

PainRelief.com: What is the background for this study?

Response: This research began about 15 years ago, grounded in my clinical work as a family physician and addiction medicine specialist. While many patients were referred for the treatment of opioid use disorder, a growing number were adults with chronic pain treated with long-term opioids—patients who didn’t quite fit into existing systems. They weren’t appropriate for addiction treatment, yet often felt unwelcome in primary care or pain clinics. Most had tried multiple medications, procedures, and physical therapy, often with limited relief. What stood out was how few had received evidence-based psychological treatments for chronic pain, despite also struggling with mental health challenges and maladaptive coping.

I became interested in identifying safe, long-term strategies to help these patients manage pain and improve their quality of life. Medications or procedures often have limited, short-term benefits and can cause side effects. Many patients were hesitant to try physical therapy again, especially given their pain levels and fear of worsening symptoms. This led me to explore psychological approaches—particularly mindfulness, which, unlike cognitive behavioral therapy or CBT (already considered a standard but underused approach), had untapped potential for addressing pain, mental health, and overall well-being.

Our team launched a pilot study comparing mindfulness-based therapy plus usual care to usual care alone for adults with opioid-treated chronic low back pain—the most common non-cancer pain treated with opioids. The results were promising and led to a large, multisite clinical trial funded by Patient-Centered Outcomes Research Institute (PCORI). In this trial, we compared mindfulness to CBT, in partnership with expert teams across the country led by Dr. Bruce Barrett (University of Wisconsin-Madison), Dr. Robert Edwards (Brigham and Women’s Hospital), and Dr. Eric Garland (University of Utah), and coordinated by the study manager, Cindy Burzinski. We hypothesized that mindfulness would outperform CBT in improving pain, function, quality of life, and reducing opioid use.

A unique strength of our study was the meaningful involvement of stakeholders throughout the entire project. From the initial planning phase—before our proposal was even submitted to PCORI—we partnered with individuals representing the perspectives of patients, caregivers, clinicians (including physicians, mental health providers, and physical therapists), and advocacy organizations. These stakeholder advisory groups met with us regularly throughout the study to provide input on how to make the project more relevant to real-world clinical settings and more user-friendly for both patients and providers. They also played a key role in interpreting the results. Their insights enriched every phase of the project and ensured that our research stayed grounded in patient-centered priorities. We were proud to formally acknowledge our partners’ contributions in the paper; two of them, Penney Cowan and Christin Veasley, are founders of prominent patient advocacy organizations and directly co-authored the article. We believe this type of collaboration should become standard practice in clinical research. It’s a powerful way to bridge the gap between research and real-world implementation.