Chronic Pain Treatments

May 13, 2026

Ketamine Therapy vs Opioids for Chronic Pain Treatment

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Ketamine Therapy vs Opioids for Chronic Pain Treatment

Chronic pain affects millions of Americans every year and can significantly impact quality of life, sleep, work, and mental health. For decades, opioid medications were one of the primary treatment options for persistent pain conditions. While opioids can provide temporary relief for some patients, concerns about addiction, dependence, tolerance, and long-term effectiveness have led many people to explore alternative approaches.

One treatment that has gained growing attention in recent years is ketamine infusion therapy. Originally developed over half a century ago as an anesthetic, ketamine is now being studied and used in specialized medical settings for certain chronic pain conditions, even when traditional treatments have not provided adequate relief.

At Mind Body Centers, patients from Gilbert, Mesa, Chandler, Tempe, Scottsdale, Burnsville, Eagan, Apple Valley, and surrounding communities often ask the same question:

What is the difference between ketamine therapy and opioids for chronic pain treatment?

Understanding how these treatments work can help patients make better informed decisions about their care.

What Are Opioids?

Opioids are a class of medications commonly prescribed for pain relief. Examples include:

oxycodone
hydrocodone
morphine
fentanyl

These medications work by binding to opioid receptors in the brain and spinal cord, helping reduce the perception of pain.

Opioids can be highly effective for short-term or acute pain, such as after surgery or injury. However, chronic pain treatment presents additional challenges.

Over time, some patients develop:

tolerance (needing higher doses)
physical dependence or addiction
increased sensitivity to pain
side effects such as constipation, fatigue, and brain fog

According to the National Institutes of Health (NIH), long-term opioid use carries significant risks, including cardiovascular issues, physical dependence, respiratory depression, altered brain chemistry, opioid use disorder and overdose complications.

What Is Ketamine Therapy for Chronic Pain?

Ketamine is a medication that has been used safely in medical settings since the 1960’s as an anesthetic. In recent years, lower-dose ketamine infusions have been used for acute treatment of severe suicidal ideation, treatment-resistant depression, and have become an emerging option for certain chronic pain conditions.

Unlike opioids, ketamine primarily works through the NMDA receptor system in the nervous system. Researchers believe this mechanism may help reduce abnormal pain signaling and central sensitization, which are often involved in chronic pain disorders.

Ketamine therapy has been studied for conditions such as:

neuropathic pain
CRPS (Complex Regional Pain Syndrome)
fibromyalgia
chronic nerve pain
post-surgical pain
treatment-resistant chronic pain

The American Society of Anesthesiologists notes that ketamine is a valid treatment option for chronic pain conditions when more conservative treatment options have failed and the treatment is administered under the supervision of a qualified medical professional.

Ketamine vs Opioids: How They Work Differently

Opioids and Pain Perception

Opioids primarily reduce pain by blocking pain signals and changing how the brain interprets discomfort. While this can provide relief, opioids often do not address the underlying neurological patterns involved in chronic pain conditions.

Over time, some patients experience diminishing effectiveness and require increasing doses to achieve the same level of relief. This unfortunately can lead to an increased risk for opioid addiction and/or opioid overdose.

Ketamine and the Nervous System

Ketamine works differently. Rather than targeting opioid receptors alone, ketamine affects glutamate signaling and NMDA receptors within the nervous system.

Research suggests ketamine may help:

interrupt pain pathways
reduce central sensitization
promote neuroplasticity
decrease “wind-up” pain responses in the brain and spinal cord

This distinction is important because many chronic pain conditions involve overactive nervous system signaling rather than tissue injury alone.

Potential Benefits of Ketamine Therapy Compared to Opioids

1. Reduced Risk of Respiratory Depression

One major concern with opioid medications is respiratory depression, particularly at higher doses. Ketamine generally affects breathing differently and is often considered safer in monitored clinical environments when administered appropriately by trained professionals.

2. May Help Patients Reduce Opioid Dependence

Some studies suggest ketamine therapy can reduce opioid consumption and improve pain management in certain pain patients. Researchers continue to investigate ketamine’s role in opioid-sparing pain management strategies.

This has become especially important as healthcare providers seek safer long-term approaches for chronic pain treatment.

3. Different Mechanism for Treatment-Resistant Pain

Conditions such as CRPS and neuropathic pain can be difficult to manage with opioids alone. Ketamine’s unique mechanism may offer another option for patients who have not experienced adequate relief from conventional pain medications.

4. Mental Health Considerations

Chronic pain and mental health are closely connected. Many patients living with persistent pain also experience anxiety, depression, or emotional exhaustion.

Ketamine has also been researched extensively for treatment-resistant depression, which is relevant for many chronic pain patients.

Are There Risks or Side Effects With Ketamine Therapy?

Like any medical treatment, ketamine therapy is not appropriate for everyone and should only be administered under professional supervision.

Possible side effects may include:

temporary dissociation
temporary dizziness
temporary nausea (can be mitigated with medication during ketamine infusion)
temporary elevated blood pressure
tiredness in the hours after treatment

Most side effects are temporary and monitored carefully during infusions.

The NIH (National Institute of Health) emphasizes the importance of individualized treatment plans and professional monitoring when using ketamine for pain management. At Mind Body Centers, we provide individualized treatment plans and 1-on-1 patient care provider in-person monitoring for our ketamine infusion patients.

Who May Be a Candidate for Ketamine Therapy?

Ketamine therapy may be considered for any of the following individuals:

have chronic pain lasting longer than three months
have not responded well to traditional treatments
want to explore alternatives to long-term opioid use
experience neuropathic or centralized pain conditions
struggle with both chronic pain and mood symptoms

At Mind Body Centers, patients from Gilbert, Chandler, Mesa, Tempe, Burnsville, Apple Valley, Eagan, and nearby communities often seek ketamine therapy after trying multiple conventional pain treatments that didn’t work.

Chronic Pain Conditions Commonly Evaluated for Ketamine Therapy

Ketamine infusion therapy may be evaluated for conditions including:

Every patient’s medical history is different, which is why comprehensive evaluations are important before beginning treatment.

What Does Ketamine Infusion Therapy Involve?

Ketamine infusion therapy is typically administered through intravenous (IV) infusion in a supervised medical setting.

During treatment at Mind Body Centers:

patients are monitored closely by a Patient Care Provider in the room
infusion treatment protocols are individualized
sessions usually occur over a structured treatment plan
patients relax in a calm environment during treatment

The experience can vary from person to person. Some patients report temporary dissociative sensations during infusions, while others describe deep relaxation.

Because ketamine therapy differs significantly from opioid medication management, many patients appreciate the structured and supervised approach offered in specialized clinics.

Ketamine Therapy in Gilbert, AZ and Burnsville, MN

As awareness of alternative chronic pain treatments continues to grow, more patients in Gilbert, Mesa, Chandler, Tempe, Burnsville, Eagan, and Apple Valley are researching ketamine infusion therapy as part of a comprehensive pain management strategy.

At Mind Body Centers, treatment plans are personalized based on each patient’s symptoms, medical history, and goals.

Final Thoughts: Ketamine vs Opioids for Chronic Pain Treatment

Opioids and ketamine are very different approaches to pain management.

While opioids primarily mask pain signals through opioid receptors, ketamine may help address abnormal nervous system activity involved in chronic pain conditions. For some patients, especially those with treatment-resistant pain, ketamine therapy may offer another path forward when traditional treatments have not provided meaningful relief.

Chronic pain treatment is highly individualized, and no single therapy works for everyone. Consulting with qualified medical professionals is essential when considering any new treatment approach.

If you are exploring alternatives to long-term opioid use for chronic pain, ketamine infusion therapy may be worth discussing with an experienced provider.

Frequently Asked Questions

1) Is ketamine therapy safer than opioids for chronic pain?

Ketamine and opioids are very different medications, and each carries its own risks and benefits. Opioids can be effective for short-term pain relief but may carry risks related to tolerance, dependence, and respiratory depression with long-term use. Ketamine therapy is administered in a monitored clinical setting and works through different neurological pathways. A qualified medical provider can help determine which treatment approach may be appropriate based on your medical history and pain condition.

2) How long does pain relief from ketamine infusions last?

The duration of relief varies from person to person and depends on factors such as the underlying condition, severity of symptoms, and treatment plan. Some patients report relief lasting days, weeks, and sometimes months after the initial stabilization series. Maintenance treatments are normal and can vary from patient to patient. Some patients may come in for a maintenance treatment about once a month, but we also have some patients that only necessitate coming in every 6 months or year. Conditions such as CRPS, neuropathy, and fibromyalgia may respond differently to ketamine therapy.