Ketamine Infusion Therapy

What Is Ketamine Infusion Therapy?

Ketamine is a medication that has been used in medicine for decades, most commonly as an anesthetic. At lower, carefully controlled doses, ketamine has also been studied and used in specialized medical settings for the management of certain chronic and neuropathic pain conditions.

Ketamine works differently from many traditional pain medications. One of its primary actions involves blocking N-methyl-D-aspartate (NMDA) receptors, which participate in pain signaling and the nervous system’s response to persistent pain.

In some chronic pain conditions, the nervous system can become increasingly sensitive to pain signals—a phenomenon often described as central sensitization. By influencing NMDA receptor activity and other neural pathways, ketamine may help interrupt abnormal pain signaling in appropriately selected patients.

Conditions That May Be Considered for Ketamine Infusion Therapy

Ketamine infusion therapy is not appropriate for every patient or every type of pain. A comprehensive medical evaluation is necessary to determine whether treatment may be suitable.

Depending on the patient’s diagnosis, medical history, previous treatments, and individual circumstances, ketamine may be considered in the management of certain challenging pain disorders, including:

• Complex Regional Pain Syndrome (CRPS)
• Certain neuropathic pain syndromes
• Peripheral neuropathic pain
• Central sensitization-related pain
• Refractory chronic pain
• Certain difficult-to-treat pain conditions that have responded inadequately to conventional therapies

Treatment recommendations are individualized, and receiving a particular diagnosis does not automatically mean ketamine therapy is appropriate.

How Does Ketamine Help With Chronic Pain?

1. Targeting NMDA Receptors

NMDA receptors are involved in communication between nerve cells and play an important role in pain processing. Persistent activation of these pathways may contribute to heightened pain sensitivity in some chronic pain conditions. Ketamine’s effect on NMDA receptors may help reduce excessive pain signaling and alter the way the central nervous system processes painful stimuli.

2. Addressing Central Sensitization

Chronic pain can sometimes continue even after the original injury has healed or become disproportionate to the initial tissue damage. Changes within the spinal cord and brain may cause the nervous system to become increasingly responsive to pain signals. Ketamine may help reduce this sensitization in certain patients, potentially allowing the nervous system to respond differently to painful stimuli.

3. A Different Approach From Opioid Therapy

Ketamine is pharmacologically different from traditional opioid pain medications. For patients struggling with difficult chronic pain, it may provide another treatment pathway without relying exclusively on conventional opioid-based approaches. Monterey Pain & Spine Institute emphasizes interventional strategies intended to address pain while minimizing the need for long-term opioid medications whenever possible.

What Happens During a Ketamine Infusion?

Ketamine used for chronic pain is administered intravenously so the medication can be delivered at a controlled rate.

• Pre-Treatment Evaluation: Before treatment, your medical history, diagnosis, medications, previous treatments, and overall health will be reviewed. This evaluation helps determine whether ketamine therapy is medically appropriate and whether additional precautions are necessary.
• Clinical Monitoring: During the infusion, patients are monitored by trained medical professionals. Depending on the treatment protocol and individual response, monitoring may include blood pressure, heart rate, oxygen levels, and other appropriate clinical observations.
• Individualized Dosing: The dose and duration of treatment are individualized according to the patient’s condition, treatment goals, medical history, and response.

What Does a Ketamine Infusion Feel Like?

Experiences vary considerably between patients. During an infusion, some people may experience temporary sensations such as:

• Drowsiness
• Dizziness or lightheadedness
• Changes in visual or sensory perception
• A feeling of detachment or altered awareness
• Nausea
• Temporary changes in blood pressure or heart rate

Because ketamine can temporarily affect perception, coordination, and alertness, patients should carefully follow all pre-treatment and post-treatment instructions provided by the medical team. Patients generally should not drive themselves home following an infusion and may need to arrange transportation with a responsible adult.

How Many Ketamine Infusions Will I Need?

There is no single treatment schedule that is appropriate for everyone. The number, frequency, and duration of ketamine infusions depend on several factors, including:

• The condition being treated
• Severity and duration of symptoms
• Previous treatment history
• Individual response to ketamine
• Treatment goals
• Overall medical health

Some patients may undergo a series of treatments, while others may require a different approach. Response should be evaluated throughout treatment so that the care plan can be adjusted when appropriate.

How Quickly Can Ketamine Work?

Responses to ketamine therapy vary. Some patients may notice changes relatively early in treatment, while others require multiple treatments before the effectiveness of therapy can be adequately assessed. Not everyone responds to ketamine, and the degree and duration of pain relief cannot be predicted in advance.

The goal is not simply to reduce a number on a pain scale. Effective chronic pain management also considers improvements in mobility, sleep, daily activity, independence, and overall function.

Is Ketamine Infusion Therapy Safe?

Ketamine has a long history of medical use, but like all medications, it carries potential risks and side effects. Appropriate patient selection, dosing, monitoring, and medical supervision are essential.

Potential side effects can include nausea, dizziness, sedation, changes in perception, temporary increases in blood pressure or heart rate, and other medication-related effects. Certain medical or psychiatric conditions and medications may affect whether ketamine is appropriate. A thorough evaluation is therefore an important part of determining candidacy.

Who May Not Be a Candidate?

Ketamine infusion therapy is not appropriate for everyone. Factors such as certain cardiovascular conditions, uncontrolled high blood pressure, particular psychiatric conditions, liver problems, pregnancy, substance-use concerns, medication interactions, and other medical issues may influence treatment recommendations.

Your provider will review your medical history and current medications before determining whether ketamine can be safely incorporated into your treatment plan. Do not discontinue or change prescription medications before treatment unless instructed to do so by your healthcare provider.

Ketamine as Part of Comprehensive Pain Management

Chronic pain is complex, and successful treatment often requires more than one strategy. Ketamine infusion therapy should therefore be viewed as a potential component of a broader treatment plan rather than an automatic standalone solution.

Depending on your diagnosis, comprehensive pain management may incorporate interventional procedures, rehabilitation, physical activity, lifestyle strategies, medication management, minimally invasive treatments, and other therapies intended to restore and preserve function. At Monterey Pain & Spine Institute, treatment is personalized around the underlying condition, the patient’s goals, and the ability to safely return to meaningful daily activities.

Why Choose Monterey Pain & Spine Institute?

• Individualized Pain Management: Pain affects every patient differently. Treatment recommendations are based on a detailed evaluation rather than a one-size-fits-all protocol.
• Interventional Pain Expertise: Monterey Pain & Spine Institute specializes in the diagnosis and treatment of chronic pain using interventional and minimally invasive approaches designed to relieve pain and improve quality of life.
• Focus on Function: Successful pain management is about more than temporary symptom relief. The goal is to help patients improve mobility, function, independence, and participation in the activities that matter to them.
• Medically Supervised Infusion Care: Ketamine is a powerful medication that requires appropriate patient selection and clinical monitoring. Infusion therapy is provided within a medical environment with attention to patient safety and individualized response.
• Reduced Reliance on Chronic Pain Medications: Our comprehensive approach emphasizes identifying and treating sources of pain while helping patients minimize reliance on long-term opioid medications whenever clinically appropriate.

Frequently Asked Questions About Ketamine Infusion Therapy

Take the Next Step Toward Better Pain Management

Persistent pain can interfere with movement, independence, sleep, work, and the activities you enjoy. When conventional treatments have not provided sufficient relief, it may be time to explore additional options.

Monterey Pain & Spine Institute provides individualized, evidence-informed pain management focused on helping patients decrease pain, restore function, and improve quality of life.

If you are interested in learning whether Ketamine Infusion Therapy in Monterey, California may be appropriate for your condition, contact our team to request an evaluation.