Spravato vs Ketamine Infusion: How They Compare

You've tried the antidepressants, maybe several rounds of them, and now you're weighing two options that sound almost identical but cost wildly different amounts. Spravato is a nasal spray. Ketamine infusion is an intravenous (IV) drip. Both come from the same molecule, both can work faster than traditional antidepressants, and both leave you wondering which one is right for you.

The confusion is fair. These treatments share more than they differ, but the differences shape cost, insurance, speed, safety rules, and where you go to get them.

The short answer: Spravato and IV ketamine have comparable results in the available research, with IV ketamine tending to act faster. The real difference is practical: Spravato's FDA approval makes insurance coverage far more straightforward, while IV ketamine is usually paid out of pocket. Your best choice comes down to your insurance, how fast you need relief, and how much of your week you can give to clinic visits.

What Spravato Is

Spravato is a prescription nasal spray containing esketamine, a purified part of the ketamine molecule. You spray it yourself in a clinic while a healthcare provider watches. It's a Schedule III controlled substance, available only through a federal safety program called the Risk Evaluation and Mitigation Strategy (REMS).

Spravato carries FDA approval for specific forms of depression. The FDA cleared it in March 2019 for treatment-resistant depression in adults. A second approval in 2020 covered depressive symptoms in adults with major depression who have acute suicidal thoughts or behavior. For treatment-resistant depression, it can be used on its own or alongside an oral antidepressant; for the suicidal-thoughts indication, it's used together with an oral antidepressant.

The REMS program shapes how you receive it. The clinic has to be federally certified, a prescriber must be onsite, and you're monitored for at least two hours after each dose. You can never take the spray home. That structure can feel inconvenient, but it exists because you may feel sedated or disconnected during and shortly after treatment.

A typical course starts with an induction phase of about eight sessions over four weeks, usually twice weekly. After that, most people taper to weekly or every-other-week maintenance. Each visit, including the two-hour monitoring window plus travel, tends to eat a half-day.

What Ketamine Infusion Therapy Is

IV ketamine infusion uses racemic ketamine, a mixture of both forms of the molecule, delivered through an intravenous drip at doses far below what's used for anesthesia. Ketamine is FDA-approved only as an anesthetic. Using it for depression is off-label, which means, as the FDA notes, ketamine is not approved for any psychiatric condition.

For people who haven't responded to standard antidepressants, a single infusion can ease symptoms fast rather than over the weeks traditional antidepressants take. The relief usually lasts several days to two weeks, so repeated infusions or maintenance treatment are typically needed.

Most clinics run an induction phase of six infusions over two to three weeks, with each session lasting roughly 40 minutes. Booster sessions follow as needed, often spaced weeks apart and adjusted to how you respond.

Unlike Spravato, IV ketamine has no equivalent REMS program. There's no federal certification requirement for clinics, providers, or people receiving treatment, so monitoring practices and protocols vary widely from one clinic to another.

How Each Treatment Works

Both treatments work differently than traditional antidepressants. They act on the brain's glutamate system, which governs mood and the brain's ability to form new connections. Traditional antidepressants target serotonin and similar messengers, which is part of why they take weeks.

Think of it as clearing new paths through an overgrown forest. Both appear to help the brain reopen pathways that depression has worn down. Where they differ is the molecule itself: Spravato is the S-form alone, delivered as a spray, while IV ketamine carries both R and S forms through a vein.

What a Spravato Session Feels Like

A provider checks your blood pressure first. Then you spray the medication yourself while they watch. Effects begin within minutes and are usually strongest around 10 to 20 minutes in. You stay in a recliner for the mandatory two-hour monitoring period.

Many people feel sedated or dissociated, a sense of being disconnected from their surroundings. You can't drive afterward, so you'll need a ride home.

What a Ketamine Infusion Feels Like

A nurse places an IV line, and session length varies by clinic. During the drip, many people experience dissociation or a dreamlike state. Afterward, clinics monitor you until your vital signs are stable and the dissociation clears, sometimes for up to two hours.

You'll need a ride home here too.

What the Research Shows About Benefits

What the Comparative Studies Found

No controlled head-to-head trials have compared Spravato and IV ketamine for depression. Most comparisons come from observational or retrospective studies, where researchers look back at records rather than running a controlled experiment.

A 2025 meta-analysis of seven observational studies pooled 915 patients. Its conclusion was straightforward: response and remission rates weren't significantly different between the two. IV ketamine may act faster, but over a full course of treatment, the two appear comparable. Neither is clearly better for everyone.

A separate study found the same pattern, with no significant difference in how many people improved, though symptoms eased faster with IV ketamine.

To put rough numbers on it: in real-world studies, IV ketamine produces response rates around 50 to 70% during the acute phase. Esketamine lands in a similar range, with many studies showing high-40% to 60% response in the first month and roughly two-thirds responding by three months. "Response" here means a meaningful drop in symptoms, not a cure, and individual results vary widely.

What Improvement Actually Feels Like

If you're wondering what that actually feels like, people often describe it as the volume turning down. The dread or emptiness doesn't vanish, but it quiets enough that getting out of bed stops being a negotiation, and a conversation stops feeling like performing.

It's closer to remembering what "okay" felt like than to euphoria.

Where the Two Differ

If depression isn't the only thing you're carrying, the picture shifts. People with more than one psychiatric condition, such as anxiety or post-traumatic stress disorder (PTSD), saw greater improvement with IV ketamine. People without other mental health conditions showed little difference between the two.

Spravato holds one distinction worth noting. It's the only FDA-approved treatment specifically indicated for depression with acute suicidal thoughts. In the ASPIRE II trial, depression scores dropped significantly more at 24 hours with esketamine than with placebo.

Cost and Access Compared

For many people, cost decides the question. And the cost picture flips depending on whether you have insurance.

Start with the sticker prices. IV ketamine usually runs $400 to $800 per session, and because it's off-label, insurance rarely covers it. A six-session induction course therefore lands somewhere around $2,400 to $4,800 out of pocket, with boosters on top. Spravato's retail price is higher, often $700 to $1,000 or more per session.

But the math flips with coverage: with qualifying commercial insurance, many people pay only a modest copay, and the manufacturer's savings program can bring out-of-pocket cost as low as roughly $10 per visit. So the cheaper option on paper, IV ketamine, often costs more in practice than insured Spravato.

Innerwell's at-home model sits below both: sublingual ketamine tablets you take at home, paired with licensed therapy and ongoing monitoring, at $54 to $75 per session with insurance or $83 to $125 self-pay.

FDA approval is what drives that coverage gap. Because Spravato has it, insurers have a clear path to pay, though plans often want records showing at least two antidepressants haven't worked, plus standard depression scores, and prior authorization can take weeks.

IV ketamine, with no FDA approval for depression, is rarely covered at all, though many people offset the cost with Health Savings Account or Flexible Spending Account funds. Two people choosing the same treatment can still pay wildly different amounts, depending entirely on their plan.

Risks and Side Effects

Both treatments can cause short-term side effects during and shortly after a session: dissociation, sedation, raised blood pressure, dizziness, and nausea. You might feel strange, sleepy, queasy, or disconnected for a little while. These usually pass within a couple of hours, which is part of why both require monitoring and a ride home.

Neither is right for everyone. Treatment may not be appropriate if uncontrolled blood pressure, certain heart conditions, a history of psychosis or substance misuse, pregnancy, or some current medications make it unsafe, which is what screening is for.

One difference stands out: Spravato carries an FDA Boxed Warning for sedation, dissociation, respiratory depression, abuse and misuse, and suicidal thoughts and behaviors, and its REMS rules are built around those risks. IV ketamine has no equivalent federal program, so the safeguards depend on the individual clinic.

How to Decide Which Option Fits

There's one thing both clinic options share that rarely makes the comparison charts: each visit is a half-day commitment. Between the drive, the session, the monitoring window, and the fact that you can't drive yourself home, a single appointment can swallow an afternoon, and you may be doing that twice a week for the first month.

If your main barrier is time rather than cost or coverage, that logistics load matters as much as anything clinical.

1. Consider Spravato if you want an FDA-approved depression treatment, have commercial insurance or Medicare coverage, prefer to avoid IV needles, or need the option approved for depression with acute suicidal thoughts.
2. Consider IV ketamine if speed is your top priority, you're carrying more than one psychiatric condition, or you've tried many antidepressants without enough relief, and you can pay out of pocket for an infusion-clinic setting.
3. Consider Innerwell's at-home model if the clinic logistics are the dealbreaker. You take sublingual ketamine tablets in your own space, with licensed therapeutic support, preparation and integration built in, and telehealth check-ins instead of in-person monitoring.

Why the Therapeutic Approach Matters

Medication is only part of the story. Ketamine appears to open a window of heightened neuroplasticity, a period when your brain may be more open to change. The medication opens a door; therapy helps you walk through it.

A narrative review found that pairing ketamine with psychotherapy can prolong reductions in depression and anxiety and build treatment engagement.

The FDA-approved Spravato model doesn't require a therapist in preparation or integration. Some clinics add it; many don't. The evidence on integration is still developing. The provider you choose matters as much as the medication here.

How Innerwell's At-Home Ketamine Therapy Works

If the clinic logistics are what give you pause, Innerwell offers a third path. Its model differs from both IV clinics and Spravato clinics: it uses at-home sublingual ketamine tablets paired with licensed Master's and Doctoral level therapists, not unlicensed guides. This isn't ketamine dropped off with minimal supervision. Care combines at-home medication, licensed therapy, preparation, integration, and ongoing monitoring.

The process:

1. Evaluation: A virtual psychiatric assessment reviews your history, current medications, past treatment responses, goals, and safety considerations to determine whether ketamine therapy is safe and a fit for your situation.
2. Delivery: If prescribed, sublingual ketamine tablets are shipped securely to your door with precise dosing instructions. You take the tablet at home, in a familiar environment, while your care team supports your sessions remotely.
3. Preparation and integration: Therapy before treatment helps you set intentions. Integration sessions afterward help you process what surfaced and turn it into changes that last beyond the session.
4. Ongoing monitoring: Your care team tracks your progress and adjusts your plan as you go.

Pricing: With insurance, sessions run $54 to $75. Self-pay sessions run $83 to $125. That includes therapeutic support, which varies or costs extra across other care models.

Program outcomes: People in Innerwell's program report a 69% reduction in depression symptoms and a 60% reduction in anxiety symptoms after 10 weeks, and about 87% see improvement within the first four weeks. People rate the program 4.7 out of 5 on average.

If you're still weighing your options, take our free assessment to see whether at-home ketamine therapy could be the right fit for you.

Frequently Asked Questions

Is Spravato the same as ketamine?

No, but they're closely related. Both act on the same brain signaling system involved in mood and forming new connections. The difference is the molecule: Spravato contains only the S-form of ketamine, while IV ketamine is a mix of both R and S forms. FDA approval, delivery method, and insurance treatment are where they diverge most in practice.

Which one works faster?

IV ketamine tends to act faster. Observational data found measurable improvement after the first IV ketamine treatment, while Spravato often showed improvement after the second. Across a full course of treatment, response and remission rates appear comparable between the two.

Which one is cheaper, and will insurance cover it?

It depends almost entirely on coverage. IV ketamine usually costs $400 to $800 per session and is rarely covered, so most people pay out of pocket. Spravato's retail price is higher, but because it's FDA-approved, qualifying commercial plans often cover it for a modest copay, and the manufacturer's savings program can lower that to roughly $10 a visit. Plans typically require proof that at least two antidepressants didn't work, and prior authorization can take weeks.