Ketamine Nasal Spray: What At-Home Patients Actually Need to Know in 2026

If you have searched for ketamine treatment recently, you have probably seen three different products called "nasal ketamine" that work very differently, cost very differently, and require very different logistics. Patients often arrive at my clinic asking for "the nasal one" without realizing they are asking about something else entirely.

This post untangles the three. The short version: Spravato (esketamine) is the FDA-approved, clinic-administered version that insurance often covers. Compounded nasal ketamine is a pharmacy-specific formulation your doctor can prescribe for home use. And most at-home ketamine — the kind I prescribe — is actually not nasal at all, for reasons I will explain. Knowing which one you are actually asking about is the first step in picking a treatment.

The three nasal products — at a glance

That last row is not nasal. It is the one I prescribe. I am including it because patients who searched for "ketamine nasal spray" often end up on oral treatments, and I want you to understand the trade-off.

Spravato — the FDA-approved route

Spravato (generic name: esketamine) was approved by the FDA in 2019 for treatment-resistant depression, and in 2020 for depression with acute suicidal ideation. It is the only FDA-approved form of ketamine specifically for depression.

What it is: the S-enantiomer of ketamine (pure S-ketamine), formulated as a nasal spray. Racemic ketamine — the kind most clinics use, the kind I prescribe — is a 50/50 mix of R and S enantiomers. Spravato is 100% S. That matters for a few reasons I have covered in R-ketamine vs S-ketamine, but for practical purposes: both work; Spravato has the FDA stamp.

How it is administered. You go to a certified clinic. You dose under medical observation. You stay on-site for 2 hours after each dose because the FDA label requires it. You can't drive home.

The schedule. Twice-weekly sessions for the first 4 weeks (induction), then weekly for 4 more weeks, then every other week indefinitely for maintenance.

Cost in 2026. List price: ~$600–$900 per session depending on the strength (56 mg vs 84 mg). Many private insurance plans cover it, as do Medicare and some state Medicaid programs. A typical covered patient pays a specialty copay of $5–$75 per session. A cash-pay patient pays $4,800–$14,400 over the induction phase alone.

Who should consider Spravato:

• Patients with insurance that covers it, and a clinic nearby.
• Patients with treatment-resistant depression specifically (2+ failed antidepressants is the label indication).
• Patients who prefer supervised in-clinic dosing over at-home.
• Patients who cannot tolerate oral dosing for some reason.

Who should probably not:

• Patients without nearby Spravato clinics (rural areas still underserved).
• Patients who cannot take 2–3 hours per session off work.
• Patients whose insurance does not cover it and who cannot cash-pay $5,000+.
• Patients seeking ketamine for off-label indications — Spravato is FDA-indicated for depression only.

Compounded nasal ketamine

This is the one most patients actually mean when they Google "ketamine nasal spray for at home."

What it is. Racemic ketamine formulated by a compounding pharmacy into a nasal spray device, prescribed for at-home use by a licensed physician.

How it is administered. You receive a spray bottle by mail, pre-measured to a specific dose per spray. You self-administer one or two sprays in each nostril per session at home.

The schedule. Variable, depending on the prescribing physician. Commonly once or twice a week, sometimes daily low-dose.

Cost in 2026. $200–$400/month depending on dose and pharmacy. Not covered by insurance. HSA/FSA eligible.

Advantages of compounded nasal:

• Fast onset — sprays absorb through nasal mucosa in minutes.
• Easy to titrate — you can take half a dose, wait, take the other half.
• No taste (unlike oral).
• Good for patients with chronic nausea or trouble holding tablets.

Disadvantages:

• Absorption varies with allergies, congestion, or nasal inflammation.
• Not FDA-approved (compounded formulations are legal but not FDA-reviewed).
• Some compounders produce inconsistent doses — quality depends on the pharmacy.
• Limited compared to oral for most depression protocols because the dose is lower per administration.

Where I land on compounded nasal: It can be a reasonable option for specific patients — particularly those with severe nausea during oral dosing, or those with chronic pain indications where rapid onset matters. For most depression patients, I prefer the oral route, and I will explain why below.

Why most at-home providers (including my clinic) use oral, not nasal

This is the part patients are surprised by.

If nasal is faster-onset and avoids the bitter taste, why do I prescribe oral tablets? Three reasons.

1. Dose consistency. Oral tablets — ODTs and RDTs — deliver a pharmacologically precise dose. The tablet contains a specific milligram count, the absorption curve is well-characterized, and two patients on the same dose get the same exposure within a small margin. Nasal absorption varies with whether your nose is dry that morning, whether you have allergies, whether the tablet has been stored correctly. The variance is wider.

2. Session length. Nasal ketamine hits fast — 5–10 minutes to onset — which is great for acute effects. But the session itself is shorter, around 45–60 minutes. Oral takes longer to onset (20–25 minutes) but the session is 75–100 minutes, which is the window where most of the therapeutic work happens. For a depression protocol, I want the longer window.

3. Predictability. At-home treatment demands consistency. A patient who has the exact same experience session after session builds more confidence, gets more therapeutic value, and rarely has surprises. Oral gives me that predictability. Nasal does not.

For the full breakdown of dosage forms, see my ODT vs. RDT vs. troche guide.

Nasal ketamine for chronic pain specifically

The one place nasal really shines: chronic-pain indications where you want rapid onset and flexible dosing.

A patient with migraine can dose a single nasal spray at symptom onset and abort the migraine. A patient with oral tablets has to wait 20–25 minutes — too slow for acute pain.

A patient with fibromyalgia flare may want to dose-titrate during the day without committing to a full session. Nasal is better for that use case than oral.

For the longer form on this, see my post on nasal ketamine for chronic pain and depression. The short version: chronic pain is the best use case for nasal; depression is the best use case for oral.

Side effects — are nasal and oral different?

Mostly no. Same underlying drug, same mechanism, same primary side effects: dissociation, mild nausea, elevated blood pressure during the peak, brief disorientation.

A few specific differences:

• Nasal causes more local irritation — burning, runny nose, mild epistaxis. Usually transient.
• Oral causes more nausea — stomach contact with the partially swallowed residue. See my nausea tips.
• Nasal dissociation is shorter and sharper — more intense per minute, fewer total minutes.
• Oral dissociation is longer and smoother — more minutes at a gentler peak.

For the general risks and side effects overview, the post covers both routes.

What about snorting powder ketamine at home?

Some patients search for "ketamine nasal powder at home" hoping to find an easier path. A few notes, since this shows up in search:

• Prescription ketamine in the US is either IV/IM injectable (not at-home), nasal spray (Spravato, clinic only; or compounded, pharmacy-specific), or oral (tablets, lozenges, solutions).
• Powder ketamine available on the street is not prescription ketamine. The purity is unknown, the dose is unknown, and the source is illegal.
• No licensed physician in the US will prescribe loose powder for at-home nasal use. Any website offering this is not a licensed clinic.

If you are considering buying ketamine online through a non-clinic source, please don't. The patient safety difference between a compounded nasal prescription from a physician and a bag of street powder is enormous. See my post on how to buy ketamine online safely for the licensed options.

Cost comparison, head-to-head

For the full breakdown with all 7 major providers, see my 2026 cost comparison.

How to pick

The flowchart I use with patients:

1. Do you have insurance that covers Spravato AND a clinic within reasonable driving distance? → Start with Spravato.
2. Do you have chronic pain that needs rapid-onset PRN dosing? → Compounded nasal is worth asking about.
3. Are you seeking depression treatment, at home, on a predictable schedule? → Oral ODT/RDT is almost always the right choice.
4. Do you have severe nausea with oral? → Talk to your physician about switching to compounded nasal.

For my patients — who are almost entirely in category 3 — the oral tablet is the default, and I switch patients to nasal only for specific clinical reasons. That is what I would suggest if you are weighing options cold.

Eligibility and next steps

Whatever route you pick, the contraindications apply to all of them — they are the same drug.

If you have been reading about "ketamine nasal spray" and ended up leaning toward at-home treatment in general, the eligibility check takes under a minute and tells you whether my practice is a fit. The pricing page has the current plans. And if you want to see exactly how to take ketamine as an oral patient, that walkthrough has the logistics.

— Dr. Ben Soffer