Ketamine vs Neuro Sympathetic Reset (NSR): Understanding Two Different Paths to Healing
Updated: Jun 24
If you are exploring advanced treatment options for mental health, you may come across both ketamine therapy and Neuro Sympathetic Reset (NSR). While both treatments can be highly effective, they work in very different ways and are designed to address different underlying conditions.
Understanding these differences can help you choose the treatment that best fits your symptoms and long-term goals.
Two Treatments, Two Different Targets
At a high level, ketamine and NSR focus on different parts of the brain and nervous system.
Ketamine therapy primarily works at the level of brain chemistry and neural connections. It is most commonly used for depression, particularly treatment-resistant depression, where traditional medications have not been effective.
Neuro-Sympathetic Reset (NSR), on the other hand, focuses on the autonomic nervous system, specifically the body’s “fight or flight” response. It is most commonly used for anxiety, PTSD, and trauma-related symptoms, where the nervous system remains stuck in an overactive stress state. While NSR is based on a procedure known as a stellate ganglion block (SGB), our approach incorporates a refined dual-level technique, trauma-informed care, and structured follow-up to support nervous system regulation and recovery.
Two Sides of the Same Coin
An important concept to understand is that anxiety and depression are often closely connected. Many patients experience both, even if one feels more dominant than the other.
A helpful way to think about this is that anxiety and depression are often like roommates, one is just louder. Sometimes anxiety shows up as constant worry, tension, and feeling on edge. Other times, depression takes the lead, showing up as low mood, lack of motivation, and emotional heaviness.
Because these conditions are so intertwined, it makes sense that different treatments may target different parts of the same underlying system. In that way, ketamine and NSR can be thought of as two sides of the same coin, each addressing a different piece of the overall picture.
How Ketamine Works
Ketamine therapy works by promoting neuroplasticity, allowing the brain to form new, healthier connections. For individuals with depression, this can help disrupt negative thought patterns and improve mood more rapidly than traditional antidepressants. Many patients report improved outlook, increased motivation, and greater mental flexibility after treatment. For this reason, ketamine is best understood as a brain-based treatment for depression, focused on restoring healthier cognitive and emotional patterns. If you're curious about the science behind ketamine, watch our short video, How Does Ketamine Work? A Simple Analogy, where Dr. Michael Louwers explains these concepts in easy-to-understand terms.
How Sympathetic Block Works
NSR takes a different approach by focusing on the body’s stress response system rather than the brain alone. In many patients with anxiety or trauma, the sympathetic nervous system becomes overactive, leading to persistent symptoms such as feeling constantly on edge, hypervigilance, poor sleep, and physical tension. NSR is designed to help reset this overactive “fight or flight” response, allowing the body to return to a calmer and more regulated baseline. Patients often describe feeling a sense of calm, reduced physical anxiety, improved sleep, and a return to feeling more like themselves. NSR is best understood as a nervous system-based treatment for anxiety, PTSD, and trauma.
Key Differences
When comparing these treatments, a few important differences become clear. While ketamine can be very effective for trauma-related conditions, it is mostly used for treatment-resistant depression, whereas NSR is often chosen for anxiety. Ketamine influences brain chemistry and neural pathways, while NSR works with the autonomic nervous system and the body’s stress response.
Treatment experiences also differ. Ketamine therapy typically involves a series of infusions and may produce temporary dissociative sensations, whereas NSR is a brief outpatient procedure designed to calm and regulate the sympathetic nervous system.
Ultimately, ketamine aims to improve mood and cognitive patterns, while NSR focuses on reducing overactive stress signaling in the body.
Choosing the right treatment depends on your primary symptoms and goals. If you are struggling with depression, low mood, or lack of motivation, ketamine therapy may be the most appropriate starting point. If your symptoms are more centered around anxiety, PTSD, hypervigilance, or chronic stress response, NSR may provide a more targeted solution. In many cases, these conditions overlap, and some patients may benefit from both treatments at different points in their healing journey.
Rather than competing therapies, ketamine and NSR can be complementary. Ketamine helps create healthier pathways in the brain, while NSR helps regulate the body's stress response. Together, they may address different aspects of depression, anxiety, PTSD, and trauma recovery.
Equally important, these approaches both rely on integrating traditional treatments such as psychotherapy and mindfulness practices. Typically, we see that patients can more easily incorporate these treatments and derive more profound benefits from traditional practices after ketamine or NSR.
At Reset Medical & Wellness Center in Strongsville, Ohio, we specialize in both ketamine therapy and Neuro Sympathetic Reset (NSR) using a personalized, trauma-informed approach to care. Our goal is not simply to treat symptoms, but to understand the underlying drivers of anxiety, depression, PTSD, and chronic stress so we can help each patient choose the treatment—or combination of treatments—that offers the greatest opportunity for meaningful and lasting improvement.
Interested in learning which treatment may be right for you? Whether you are struggling with depression, anxiety, PTSD, or symptoms related to chronic stress, our team is happy to help. Schedule a free phone consultation or complete our intake form to discuss your symptoms, ask questions, and determine whether ketamine therapy, Neuro Sympathetic Reset (NSR), or a combination of both may fit into your recovery plan.
Michael J. Louwers, MD
Medical Director, Reset Medical & Wellness Center
Board-Certified Physical Medicine & Rehabilitation
Fellowship-Trained and Board-Certified in Interventional Pain Management
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Frequently Asked Questions
What is the difference between Neuro Sympathetic Reset (NSR) and a traditional stellate ganglion block?
Neuro Sympathetic Reset (NSR) is our advanced approach to stellate ganglion block that incorporates dual-level targeting, real-time ultrasound guidance, trauma-informed care, and structured support before and after treatment.
How quickly does NSR work?
Some patients notice improvements within hours, while others experience more gradual changes over several days or weeks. Response times vary from person to person, and meaningful changes often continue to evolve over time.
How long do the effects of NSR last?
Many patients experience relief lasting months or even years. Some individuals benefit from repeat treatments if symptoms gradually return. You can view our clinical outcomes here.
Is NSR safe?
When performed with ultrasound guidance and proper technique, NSR is considered very safe. Temporary effects such as eyelid drooping, hoarseness, or regional numbness are expected and typically resolve within a few hours.
How does ketamine therapy work?
Ketamine therapy works differently than traditional antidepressants. Rather than simply increasing neurotransmitter levels, ketamine helps promote neuroplasticity and supports healthier communication pathways within the brain. It is used to treat depression, PTSD, anxiety, and other mood disorders.
How quickly does ketamine therapy work?
Many patients begin noticing improvements after the first few treatments, while others experience more gradual changes throughout the initial series. Response times vary, and ketamine therapy is typically administered as a series of six infusions over three to five weeks.
Is ketamine therapy safe?
Yes. When administered in a physician-supervised setting with appropriate monitoring, IV ketamine therapy has an excellent safety profile. Temporary side effects such as dizziness, nausea, elevated blood pressure, or dissociation are generally mild and resolve shortly after treatment.
How long do the benefits of ketamine therapy last?
The duration of benefit varies from person to person. Some individuals experience prolonged improvement after the initial series, while others may benefit from periodic maintenance treatments. Booster treatments are individualized based on symptoms and clinical response.