What Is Ketamine Infusion Therapy?

Ketamine infusion therapy is a medically supervised treatment in which low doses of ketamine are delivered intravenously over a controlled period. Originally developed as an anesthetic in the 1960s, ketamine has emerged as one of the most promising breakthroughs in mental health treatment over the past two decades.

Unlike traditional antidepressants that target serotonin or norepinephrine and can take weeks to produce noticeable effects, ketamine works on the brain’s glutamate system, often providing relief within hours or days. The treatment is administered in a clinical setting under the direct supervision of a physician, making it fundamentally different from any recreational or unsupervised use of the substance.

At NuGen Medicine, Dr. Nima Ghadimi, board-certified internist with over 20 years of clinical experience, personally oversees every ketamine infusion protocol. Each treatment plan is carefully tailored to the patient’s diagnosis, medical history, and therapeutic goals.

How Does Ketamine Work in the Brain?

To understand why ketamine therapy is generating so much attention in the medical community, it helps to understand how ketamine works on the brain at the molecular level.

Most conventional antidepressants, such as SSRIs and SNRIs, work by increasing the availability of serotonin or norepinephrine between nerve cells. While effective for many patients, these medications typically require four to six weeks to produce meaningful changes, and they do not work for everyone.

Ketamine takes an entirely different approach. It acts primarily as an NMDA receptor antagonist, blocking certain glutamate receptors in the brain. This blockade triggers a cascade of neurochemical events:

• Increased BDNF release: Ketamine stimulates the production of brain-derived neurotrophic factor, a protein essential for the growth, survival, and repair of neurons.
• Enhanced synaptic plasticity: By promoting new synaptic connections, ketamine essentially helps the brain rewire itself, restoring communication pathways that depression, anxiety, or trauma may have damaged.
• Rapid glutamate surge: The temporary increase in glutamate activity activates AMPA receptors, which are linked to faster mood improvements and reduced depressive symptoms.

According to research published in the American Journal of Psychiatry, a single intravenous dose of ketamine can produce significant antidepressant effects within 24 hours in patients with treatment-resistant depression (Murrough et al., 2013).

This rapid mechanism of action is what makes ketamine treatment especially valuable for patients in acute distress or those who have not responded to conventional medications.

Conditions Treated With Ketamine Infusion Therapy

Ketamine infusion therapy is not a one-size-fits-all treatment, but it has demonstrated significant effectiveness for several conditions that are often difficult to manage with standard therapies.

Treatment-Resistant Depression

Depression is considered treatment-resistant when a patient has not responded adequately to at least two different antidepressant medications taken at proper doses for sufficient durations. The National Institute of Mental Health (NIMH) estimates that roughly one-third of people with major depressive disorder fall into this category.

For these patients, IV ketamine for depression can offer rapid and meaningful relief where other options have failed. Many patients report noticeable improvements after their first or second infusion.

Anxiety Disorders

Generalized anxiety disorder, social anxiety, and other anxiety-related conditions can be debilitating. Emerging research supports the use of ketamine infusion for anxiety, particularly when conventional anxiolytics and therapy have provided insufficient relief.

Post-Traumatic Stress Disorder (PTSD)

Ketamine for PTSD treatment represents a growing area of clinical interest. Studies suggest that ketamine may help by disrupting the reconsolidation of traumatic memories and reducing the hyperarousal and avoidance symptoms characteristic of PTSD.

Chronic Pain Syndromes

Conditions such as fibromyalgia, complex regional pain syndrome (CRPS), neuropathic pain, and certain migraine disorders may respond to ketamine infusion therapy. Ketamine’s ability to modulate pain signaling through NMDA receptor blockade makes it a unique tool in pain management, particularly for patients who have not found relief through conventional analgesics.

Suicidal Ideation

One of the most clinically significant findings in ketamine research is its ability to rapidly reduce suicidal thoughts. A study published in the Journal of Clinical Psychiatry found that ketamine produced significant reductions in suicidal ideation within 24 hours, an effect not seen with most other psychiatric medications.

If you or someone you know is experiencing a mental health crisis, please call the 988 Suicide and Crisis Lifeline (call or text 988) or go to your nearest emergency room immediately.

What to Expect During a Ketamine Infusion Session at NuGen Medicine

Understanding what happens during a ketamine infusion session can help ease any apprehension. Here is a step-by-step overview of the treatment process at NuGen Medicine.

Step 1: Initial Consultation and Evaluation

Before any treatment begins, you will have a comprehensive consultation with our medical team. This evaluation includes:

• A thorough review of your medical history and current medications
• Assessment of your mental health diagnosis and previous treatment responses
• Discussion of your therapeutic goals and expectations
• Physical examination and baseline vital signs
• Determination of whether ketamine infusion therapy is appropriate for your specific situation

Not every patient is a candidate for ketamine therapy. Conditions such as uncontrolled hypertension, active substance use disorders, certain psychotic disorders, or pregnancy may disqualify someone from treatment. Our team conducts rigorous screening to ensure patient safety above all else.

Step 2: Preparing for Your Infusion

On the day of your session, you will be asked to:

• Avoid eating for four to six hours before your appointment (light liquids are usually permitted)
• Arrange transportation home, as you will not be able to drive after the infusion
• Wear comfortable clothing
• Arrive 15 minutes early to settle in and have your vitals checked

Step 3: The Infusion

You will be seated in a comfortable recliner in a private, calm treatment room. An IV line will be placed in your arm, and the ketamine solution will be infused slowly over approximately 40 to 60 minutes. During this time:

• Your blood pressure, heart rate, and oxygen saturation are continuously monitored
• You may experience mild dissociation, a sense of floating, or vivid visual or sensory experiences
• The environment is designed to be soothing, with dim lighting and minimal disruption
• A trained medical professional remains present throughout the entire session

Step 4: Recovery and Observation

After the infusion is complete, you will remain in the clinic for approximately 30 to 45 minutes for observation. Most patients feel the dissociative effects fade within this period. You may feel drowsy, slightly disoriented, or emotionally reflective. These responses are normal and temporary.

Step 5: Follow-Up and Ongoing Care

Our team will check in with you by phone or secure message within 24 to 48 hours after your infusion to assess how you are feeling. Your treatment plan will be adjusted as needed based on your response.

How Many Ketamine Infusion Sessions Will You Need?

A standard initial treatment course at NuGen Medicine typically includes six infusions administered over a two- to three-week period. This loading phase is designed to build and sustain the neuroplastic changes that ketamine produces.

After the initial series, many patients benefit from periodic maintenance infusions, which may be scheduled monthly or as needed based on symptom recurrence. Dr. Ghadimi works closely with each patient to develop a long-term care plan that balances effectiveness with convenience.

Some patients experience significant and lasting improvements after the initial series alone, while others require ongoing support. Every response is unique, which is why personalized, physician-led care is essential.

Is Ketamine Infusion Therapy Safe?

When administered in a controlled medical setting by trained professionals, ketamine infusion therapy has an excellent safety profile. Decades of use in anesthesia have established ketamine as one of the most well-studied medications in medicine.

Common Side Effects

Most side effects are mild, temporary, and resolve within one to two hours after the infusion:

• Mild nausea (can be managed with anti-nausea medication)
• Dizziness or lightheadedness
• Transient dissociation or dream-like sensations
• Temporary increase in blood pressure or heart rate
• Fatigue or drowsiness

What About Addiction Risk?

In the controlled, low-dose clinical setting used for ketamine infusion therapy, the risk of addiction is very low. The doses used therapeutically are significantly lower than those associated with recreational misuse, and treatment is closely supervised. At NuGen Medicine, we follow evidence-based protocols and monitor every patient to minimize any risk.

FDA Status

Ketamine is FDA-approved as an anesthetic. Its use for depression, anxiety, and pain management is considered “off-label,” which means the medication is used in a manner not specified in the FDA’s approved labeling. Off-label prescribing is common, legal, and well-supported by clinical evidence. Esketamine (Spravato), a nasal spray derived from ketamine, has received FDA approval specifically for treatment-resistant depression.

Ketamine Infusion Therapy Cost: What to Know

One of the most common questions patients ask is about the cost of ketamine infusion therapy. Because ketamine for mental health is still considered off-label, most insurance plans do not cover it.

At NuGen Medicine, we believe that financial barriers should not prevent anyone from accessing effective treatment. We offer transparent pricing and flexible payment options. During your initial consultation, our team will provide a detailed breakdown of costs and discuss available options to make treatment accessible.

Who Is a Good Candidate for Ketamine Therapy?

Ketamine infusion therapy may be right for you if:

• You have been diagnosed with major depressive disorder, treatment-resistant depression, anxiety, PTSD, or chronic pain
• You have tried two or more antidepressant medications without adequate relief
• You are looking for a faster-acting alternative to traditional psychiatric medications
• You are under the care of a mental health professional and seeking an adjunct treatment
• You are medically stable and do not have contraindications such as uncontrolled blood pressure, active psychosis, or pregnancy

Ketamine therapy is not recommended for individuals with a history of unmanaged substance use disorders, certain cardiovascular conditions, or active psychotic episodes. A thorough medical evaluation is always the first step.

Why Choose NuGen Medicine for Ketamine Infusion Therapy?

Choosing where to receive ketamine therapy is a significant decision. Here is what sets NuGen Medicine apart:

• Physician-led care: Dr. Nima Ghadimi personally develops and oversees every treatment protocol, ensuring the highest standard of medical supervision.
• Comprehensive evaluation: We do not take a one-size-fits-all approach. Every patient receives a thorough assessment before treatment begins.
• Comfortable, clinical environment: Our infusion rooms are designed to be calming and supportive, creating the best possible experience during treatment.
• Integrated care model: Ketamine infusion therapy works best when combined with ongoing mental health support. We coordinate with your existing providers to ensure continuity of care.
• Transparent pricing: No hidden fees. We discuss costs upfront and offer flexible payment arrangements.
• Multi-state availability: With locations in Arizona, California, and Florida, plus telemedicine consultations, NuGen Medicine makes it easier to access the care you need.

Frequently Asked Questions About Ketamine Infusion Therapy

How quickly does ketamine infusion therapy work?

Many patients notice improvements in mood or pain levels within hours to days of their first infusion. The full benefits typically become more apparent after completing the initial series of six treatments.

How long do the effects of ketamine therapy last?

The duration of relief varies by individual. Some patients experience weeks or months of improvement after their initial treatment course. Maintenance infusions can help sustain the benefits long-term.

Will I be unconscious during the infusion?

No. The doses used in ketamine infusion therapy are much lower than those used for anesthesia. You will remain awake but deeply relaxed. Some patients experience mild dissociation or visual sensations, which resolve after the session.

Can I continue taking my current medications?

In most cases, yes. However, certain medications, particularly benzodiazepines and lamotrigine, may interact with ketamine’s therapeutic effects. Our team will review your full medication list during your consultation and advise you accordingly.

Is ketamine infusion therapy the same as Spravato (esketamine)?

They are related but different. Spravato is a nasal spray containing esketamine (the S-enantiomer of ketamine) that is FDA-approved for treatment-resistant depression. IV ketamine infusion therapy uses racemic ketamine delivered intravenously, allowing for more precise dosing and potentially broader applications.

Do I need a referral to start ketamine therapy?

No referral is required. You can contact NuGen Medicine directly to schedule your initial consultation. We welcome self-referrals as well as referrals from psychiatrists, therapists, and primary care physicians.

Take the Next Step Toward Relief

If you have been living with treatment-resistant depression, chronic anxiety, PTSD, or chronic pain, and traditional treatments have not provided the relief you deserve, ketamine infusion therapy may offer a new path forward.

At NuGen Medicine, we are committed to providing safe, evidence-based, and compassionate care under the guidance of Dr. Nima Ghadimi. Whether you visit us in person or connect through a telemedicine consultation, our goal is to help you feel better, faster.

Schedule your ketamine therapy consultation today and discover how NuGen Medicine can help you reclaim your quality of life.

Medical Disclaimer: This article is for informational purposes only and does not constitute medical advice. Ketamine infusion therapy should only be administered by qualified medical professionals. Always consult with your physician before starting any new treatment. If you are experiencing a mental health emergency, call 988 or go to your nearest emergency room.