Depression affects more than 21 million adults in the United States each year, and for many patients, traditional antidepressants fail to provide adequate relief. Ketamine therapy for depression has emerged as a breakthrough treatment option, offering rapid symptom improvement for patients with treatment-resistant depression and severe mood disorders.
Schedule a ketamine therapy consultation with Dr. Ghadimi at NuGen Medicine today.
At NuGen Medicine, Dr. Nima Ghadimi, board-certified internist, provides physician-supervised ketamine infusion therapy in a safe, clinical setting. This guide covers how ketamine works for depression, who qualifies, what to expect during treatment, and how it compares to standard antidepressants.
What Is Ketamine Therapy for Depression?
Ketamine therapy for depression is a clinician-administered treatment that uses low-dose ketamine infusions to rapidly reduce depressive symptoms. Originally developed as an anesthetic, ketamine was approved by the FDA in a nasal spray form (esketamine/Spravato) for treatment-resistant depression in 2019. Intravenous (IV) ketamine infusions are used off-label and have been studied extensively in clinical settings since the early 2000s.
Unlike traditional antidepressants such as SSRIs and SNRIs, which can take 4 to 6 weeks to show effects, ketamine often produces noticeable improvement within hours to days. Research published in the American Journal of Psychiatry has demonstrated that a single IV ketamine infusion can reduce depressive symptoms in as little as 24 hours.
At NuGen Medicine, ketamine infusions are administered under direct physician supervision in our Scottsdale clinic at 5111 N Scottsdale Rd #143, Scottsdale, AZ 85250. Each session is tailored to the patient’s specific condition and response history.
How Does Ketamine Work for Depression?
Ketamine works through a different mechanism than traditional antidepressants. While SSRIs target serotonin levels, ketamine acts primarily on the brain’s glutamate system, the most abundant excitatory neurotransmitter. Here is what happens during treatment:
- NMDA receptor blockade: Ketamine blocks N-methyl-D-aspartate (NMDA) receptors, which triggers a cascade of neurochemical changes that promote rapid mood improvement.
- Synaptic plasticity: By increasing brain-derived neurotrophic factor (BDNF), ketamine helps the brain form new neural connections, essentially rewiring mood-regulation pathways.
- Rapid glutamate surge: The temporary increase in glutamate activity stimulates synaptogenesis, restoring communication between neurons that depression has weakened.
- Anti-inflammatory effects: Emerging research suggests ketamine may reduce neuroinflammation, which is increasingly linked to depressive disorders.
This unique mechanism explains why ketamine can produce relief within hours, compared to weeks for conventional medications. According to a 2023 meta-analysis in The Lancet Psychiatry, IV ketamine demonstrated significant antidepressant effects in over 60% of patients with treatment-resistant depression.
Ask Dr. Ghadimi if ketamine therapy is right for your depression. Contact NuGen Medicine.
Who Is a Candidate for Ketamine Therapy?
Ketamine therapy is typically recommended for patients who have not responded adequately to at least two different antidepressant medications, a condition known as treatment-resistant depression (TRD). Candidates may include patients experiencing:
- Treatment-resistant depression: Persistent depressive symptoms despite trying multiple antidepressants at therapeutic doses
- Major depressive disorder (MDD): Severe episodes that significantly impair daily functioning
- Suicidal ideation: Ketamine’s rapid action makes it particularly valuable for patients in acute crisis (the FDA approved esketamine specifically for this indication)
- Bipolar depression: Depressive episodes in bipolar disorder that have not responded to mood stabilizers
- Co-occurring anxiety: Patients with comorbid anxiety disorders, including PTSD, may also benefit from ketamine’s effects
Dr. Ghadimi conducts a thorough medical evaluation before recommending ketamine therapy. This includes reviewing psychiatric history, current medications, cardiovascular health, and any history of substance use disorders. Learn more about our comprehensive approach on our Meet Our Providers page.
What to Expect During a Ketamine Infusion Session
A typical ketamine infusion for depression follows a structured clinical protocol designed for safety and effectiveness. Here is a step-by-step overview of the treatment process at NuGen Medicine:
Before Your First Session
- Complete a comprehensive medical and psychiatric evaluation
- Review all current medications with Dr. Ghadimi
- Receive baseline vital sign measurements
- Discuss treatment goals and expectations
During the Infusion
- Each IV ketamine session typically lasts 40 to 60 minutes
- A low dose of ketamine is administered through an IV line while you relax in a comfortable treatment room
- Vital signs are monitored continuously throughout the infusion
- Some patients experience mild dissociative effects, floating sensations, or visual changes that resolve shortly after the infusion ends
After the Session
- A 30-minute observation period follows each infusion
- You will need someone to drive you home; driving is not permitted on the day of treatment
- Most patients can resume normal activities the following day
- Response is evaluated over the initial series of treatments
The standard initial protocol involves a series of six infusions over two to three weeks. Maintenance infusions may be recommended based on individual response, typically ranging from once monthly to once every few months. Learn more about our IV ketamine treatment approach.
Ketamine vs. Traditional Antidepressants
Understanding how ketamine compares to standard depression medications helps patients make informed decisions. Here is a comparison of key factors:
| Factor | Ketamine Therapy | Traditional Antidepressants (SSRIs/SNRIs) |
|---|---|---|
| Onset of action | Hours to days | 4 to 6 weeks |
| Mechanism | Glutamate/NMDA receptor | Serotonin/norepinephrine reuptake |
| Administration | IV infusion or nasal spray (clinical setting) | Daily oral medication |
| Treatment-resistant cases | 60%+ response rate in TRD | 30-40% remission rate with first medication |
| Side effects | Temporary dissociation, nausea, blood pressure changes | Weight gain, sexual dysfunction, sleep changes |
| Duration of effect | Days to weeks per infusion; maintenance needed | Continuous daily dosing required |
Ketamine therapy is not intended to replace all other depression treatments. Many patients benefit from a combined approach that includes ketamine infusions alongside therapy, lifestyle modifications, and in some cases, continued use of oral antidepressants. Dr. Ghadimi works with each patient to develop an individualized treatment plan through our comprehensive medical services.
Ready to explore ketamine therapy? Book your evaluation at NuGen Medicine in Scottsdale.
Is Ketamine Therapy Safe?
When administered by a qualified physician in a clinical setting, ketamine therapy has a well-established safety profile. The most common side effects are temporary and typically resolve within one to two hours after the infusion:
- Dissociation: A feeling of detachment from your surroundings, which is temporary and monitored
- Nausea: Mild nausea that can be managed with anti-nausea medication
- Elevated blood pressure: Transient increases in blood pressure and heart rate during the infusion
- Dizziness or drowsiness: Typically resolves during the post-infusion observation period
Serious adverse events are rare when ketamine is administered at the low doses used for depression treatment under physician supervision. The National Institute of Mental Health (NIMH) continues to fund research into ketamine’s long-term safety and efficacy. Read more about what the treatment experience involves in our guide to IV ketamine infusion therapy.
Cost and Insurance Coverage for Ketamine Therapy
The cost of ketamine therapy varies depending on the type of treatment and number of sessions required. Here is a general overview:
- IV ketamine infusions: Individual sessions typically range from $400 to $800 per infusion. The initial series of six treatments may cost $2,400 to $4,800 total.
- Esketamine (Spravato) nasal spray: This FDA-approved version is more commonly covered by insurance, though copays and deductible requirements vary by plan.
- Insurance coverage: Most private insurance plans do not cover IV ketamine for depression, as it remains an off-label use. However, coverage for esketamine (Spravato) is expanding as more insurers recognize its FDA approval status.
NuGen Medicine’s team can help you understand your options and navigate the financial aspects of treatment. Contact our office to discuss pricing and payment plans for your specific situation.
Why Choose NuGen Medicine for Ketamine Therapy?
NuGen Medicine offers a physician-led approach to ketamine therapy that prioritizes safety, personalization, and clinical outcomes. Key advantages include:
- Board-certified physician oversight: Dr. Nima Ghadimi personally supervises every ketamine infusion, bringing over 20 years of clinical experience
- Comprehensive evaluation: Every patient receives a thorough medical and psychiatric assessment before treatment begins
- Integrated care: Ketamine therapy is offered alongside functional medicine, ADHD treatment, and other services for a holistic approach to mental health
- Convenient Scottsdale location: Our clinic at 5111 N Scottsdale Rd #143 provides a comfortable, private treatment environment
- Training at Mayo Clinic: Dr. Ghadimi’s training at one of the nation’s top medical institutions ensures evidence-based, high-quality care
Learn more about our full range of services on our ketamine infusion Scottsdale guide or read about ketamine for anxiety treatment.
Frequently Asked Questions About Ketamine for Depression
How quickly does ketamine work for depression?
Many patients notice improvement in depressive symptoms within 24 to 72 hours after their first ketamine infusion. This rapid onset is one of the primary advantages over traditional antidepressants, which typically require 4 to 6 weeks to take effect. However, the full treatment protocol of six infusions is usually recommended for sustained results.
How long do the effects of ketamine therapy last?
The antidepressant effects of a single ketamine infusion typically last one to three weeks. With a complete initial series of six infusions, many patients experience relief lasting several weeks to months. Maintenance infusions, usually once monthly, help sustain the benefits over the long term.
Can ketamine therapy make depression worse?
In most clinical studies, ketamine has not been shown to worsen depression. However, some patients may experience temporary mood fluctuations during the treatment series. This is why physician supervision and regular follow-up assessments are essential. If you experience any concerning symptoms, contact your treatment team immediately.
Does insurance cover ketamine therapy for depression?
Most insurance plans do not cover IV ketamine infusions for depression, as they are considered off-label. The FDA-approved nasal spray form, esketamine (Spravato), has broader insurance coverage. NuGen Medicine can help you explore your coverage options and discuss payment plans.
Is ketamine therapy addictive?
At the low doses used for depression treatment and under medical supervision, the risk of addiction is low. Ketamine infusions are administered in a controlled clinical setting on a scheduled basis, which differs significantly from recreational use. Dr. Ghadimi screens all patients for substance use history before beginning treatment.
Who should not receive ketamine therapy?
Ketamine therapy may not be appropriate for patients with uncontrolled hypertension, active substance abuse disorders, certain psychotic disorders (such as schizophrenia), or pregnancy. A thorough medical evaluation is required before treatment to identify any contraindications.
Disclaimer: This article is for informational purposes only and does not constitute medical advice. Ketamine therapy should only be administered by a qualified healthcare provider. Consult your physician before starting any new treatment for depression. If you are experiencing a mental health crisis, call 988 (Suicide and Crisis Lifeline) or go to your nearest emergency room.