Who is a good candidate for low-dose ketamine therapy?

Low-dose ketamine therapy is primarily considered for adults with treatment-resistant depression, meaning they have not responded adequately to at least two conventional antidepressants. It may also be appropriate for individuals with severe anxiety disorders, PTSD, chronic pain syndromes, or acute suicidal ideation requiring rapid intervention. Candidates should be evaluated by a qualified clinician who reviews their full psychiatric and medical history. People with uncontrolled hypertension, active psychosis, or a history of ketamine misuse are generally not considered suitable candidates. For a detailed review, see our guide on [patient selection criteria](/clinical/patient-selection-criteria/). A thorough screening process helps ensure the treatment is both safe and likely to be beneficial.

What are the first steps to starting ketamine treatment?

The first step is scheduling a consultation with a ketamine provider, which may be a psychiatrist, anesthesiologist, or other licensed clinician experienced in ketamine therapy. During this consultation, the provider will review your medical history, current medications, prior treatment attempts, and mental health diagnosis. You will typically complete standardized depression and anxiety rating scales. The provider will discuss treatment options, including the route of administration such as intravenous infusion, intranasal, or sublingual. If deemed appropriate, you will receive a treatment plan outlining the schedule, costs, and what to expect.

How do I find a qualified ketamine provider?

Start by asking your psychiatrist or primary care physician for a referral. You can also search directories maintained by professional organizations such as the American Society of Ketamine Physicians, Psychotherapists, and Practitioners (ASKP3). Look for providers who are board-certified in psychiatry, anesthesiology, or a related field and who have specific training in ketamine administration. Verify that the clinic has proper monitoring equipment and emergency protocols. Telehealth platforms now also offer at-home ketamine programs with sublingual or oral formulations, though these require careful provider oversight. Always confirm the provider's credentials and read patient reviews before committing.

What should I expect at my first ketamine appointment?

Your first appointment typically involves a comprehensive intake assessment lasting 30 to 60 minutes. The provider will review your psychiatric history, medical conditions, current medications, and previous treatment responses. You will likely complete depression and anxiety screening questionnaires such as the PHQ-9 and GAD-7. Vital signs including blood pressure and heart rate will be checked, as ketamine can cause transient cardiovascular changes. The clinician will explain the treatment process, potential side effects, and realistic expectations for outcomes. You may sign an informed consent form. Some clinics schedule the first treatment session on the same day, while others schedule it separately.

How much does ketamine therapy cost?

Costs vary significantly depending on the route of administration and clinic setting. Intravenous ketamine infusions typically cost [$400 to $800 per session](/clinical/ketamine-therapy-cost/), with an initial series of six infusions over two to three weeks totaling $2,400 to $4,800. Sublingual or oral ketamine prescribed through telehealth platforms may cost $150 to $350 per month. FDA-approved intranasal esketamine (Spravato) can cost $600 to $900 per session before insurance, though many insurers now cover it for treatment-resistant depression. Maintenance treatments add ongoing costs. Some clinics offer payment plans or sliding-scale fees to improve accessibility.

Does insurance cover ketamine therapy?

Insurance coverage depends on the specific treatment. FDA-approved intranasal esketamine (Spravato) is covered by many commercial insurers and Medicare for treatment-resistant depression, typically requiring prior authorization and documentation of failed medication trials. Generic intravenous or oral ketamine used off-label is rarely covered by insurance, as insurers generally do not reimburse off-label treatments regardless of clinical evidence. Some patients have success submitting out-of-network claims or using health savings accounts and flexible spending accounts. It is advisable to contact your insurance company directly and ask your provider for a predetermination letter before starting treatment. Learn more about [insurance coverage for ketamine](/clinical/does-insurance-cover-ketamine/).

Do I need a referral from my psychiatrist to get ketamine therapy?

A formal referral is not always required, but it is strongly recommended. Many ketamine clinics accept self-referrals and will conduct their own evaluation. However, having your psychiatrist involved ensures continuity of care and helps the ketamine provider understand your full treatment history. Some clinics and telehealth platforms do require documentation of prior treatment failures before approving ketamine therapy. If you are currently seeing a mental health professional, discussing ketamine as an option with them first can help coordinate your overall treatment plan and ensure that ketamine therapy complements rather than conflicts with your existing care.

How quickly can I start treatment once I decide to pursue ketamine therapy?

The timeline varies by provider and setting. Some ketamine clinics can schedule an initial consultation within one to two weeks and begin treatment immediately after the evaluation if you are deemed a suitable candidate. Telehealth platforms offering at-home oral ketamine may have shorter wait times, sometimes starting within a week of the initial assessment. For FDA-approved esketamine (Spravato), the process may take longer due to insurance prior authorization requirements, which can add one to four weeks. If you are experiencing a mental health crisis, communicate the urgency to the provider, as many clinics prioritize patients with acute needs.

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Getting Started with Ketamine Therapy

Name: Low Dose Ketamine
Address: US
Price range: $$

Answers to common questions about beginning low-dose ketamine treatment, including candidacy, finding providers, what to expect, and costs.

February 10, 2026

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