If you have never done a ketamine session before, the most useful thing I can give you is a timeline — not more science, not another list of "set your intention" tips, but an actual minute-by-minute walkthrough of what your first session looks like from the day before through the morning after.

I've done some version of this conversation with every one of my new patients. The vast majority of first-time anxieties are about the logistics, not the medication — what do I eat, where do I lie down, who can I call, can I text, do I set an alarm. I am going to answer every one of those questions in order.

One note before we start: this is a walkthrough of a standard oral-dissolving-tablet (ODT) session of the kind I prescribe. For background on the medication form, see my ODT versus RDT versus troche guide. For the underlying science of why any of this works, see how ketamine works.

The day before your session

Sleep. The single biggest thing that separates a smooth first session from a rough one is whether you slept the night before. Ketamine sessions amplify whatever physiological state you come in with. A sleep-deprived session feels worse than a rested one. Aim for a normal bedtime, ideally with at least 7 hours. If you have an evening ritual, stick to it — do not over-prepare.

Hydration. Drink water normally throughout the day. You do not need to load up.

Food. Eat normally. Lunch and dinner, whatever you usually have. No special diet required.

Medications. Take everything you normally take on your normal schedule — including your SSRI if you are on one (see my SSRI post for the longer discussion). The exceptions I cover on your intake: benzodiazepines on session day, stimulants on session day, tramadol, MAOIs. If I have not told you to hold a medication, keep taking it.

Alcohol. None the night before, for reasons my ketamine and alcohol post covers in full. A drink with dinner 24 hours earlier is fine.

Set up your space. This is the part most patients underthink. You are going to spend 90 minutes in one spot. Make it a spot you want to be in. Specifically:

A bed or couch where you can fully recline.
A pillow under your head that keeps you comfortable on your back.
An eye mask or dark room — light is disruptive during the experience.
Noise-canceling headphones or earbuds with a playlist already queued.
A trash can within arm's reach (most patients don't need it; a small percentage have mild nausea — see my nausea tips).
Water bottle next to you.
Phone on Do Not Disturb except for a single emergency contact.
No work materials, no computer, no television.

The cleaner the environment, the easier the experience.

The morning of your session

Breakfast. Eat normally in the morning if you are dosing in the afternoon. Light meal — oatmeal, toast, eggs, yogurt. Not a heavy breakfast burrito. Not nothing.

Fasting window. Stop eating 2 hours before your dose. This is the single most important anti-nausea rule. An empty-ish stomach reduces the nausea risk substantially. Water is fine during this window.

Last meal timing example. If you dose at 3 PM, finish eating by 1 PM. One light snack at 12:30 is fine. Nothing from 1 PM to 3 PM.

Clear your afternoon. You need nothing on your schedule for the 4 hours around your dose. No calls, no Zoom meetings, no picking up kids. Your job that afternoon is the session and the rest immediately after.

Arrange a "sitter" (optional but encouraged). For first sessions, I encourage patients to have a trusted adult in the house — not in the room, just in the house. They do not need to check on you. They just need to be there. After 2–3 successful sessions most patients are comfortable solo.

The hour before your dose

30 minutes before: use the bathroom, change into comfortable clothes, dim the lights in your session space.
20 minutes before: queue your music. Two hours of instrumental, no lyrics. I recommend Sigur Rós, Max Richter, Nils Frahm, Stars of the Lid, Hammock. Or the Mindbloom/Johns Hopkins playlists on Spotify if you prefer something curated.
10 minutes before: put the ODT on your bedside table, water bottle next to it. Eye mask within reach. Phone on DND.
5 minutes before: lie down. Take a few slow breaths. There is nothing to do — the medication will do the work.

The dose itself

Take the tablet. Place the ODT under your tongue (or between your cheek and gums — some patients find this more comfortable). Do not chew. Do not swallow. Do not drink water.

Hold it. The medication absorbs through the lining of your mouth — the tissue under your tongue and inside your cheek has a rich blood supply, which is why this route works. The longer you hold it without swallowing, the more medication gets absorbed before any goes down your throat. The best results come from 15 minutes of holding without swallowing.

The taste. It is bitter. Everyone finds it bitter. Breathe through your nose if it helps. You will adapt.

Saliva management. You will produce more saliva than usual. Swallow it periodically — the bitter taste is unpleasant but the swallowed saliva is mostly water, and the medication you've already absorbed is already in your system. Do not spit into a cup. Just swallow.

After 15 minutes: swallow the remaining tablet (there is usually still some residue). Rinse your mouth gently with water. Lie back.

Minutes 0–15 after the dose

You will feel the onset somewhere between 10 and 25 minutes after dosing, depending on your metabolism and how much you held. The first sign is usually a mild drowsy or heavy feeling in the body — like sinking slightly into the bed. Some patients report a gentle warmth or a sense of gravity increasing.

This is the onset. Nothing to do. Keep the eye mask on. Breathe normally.

Minutes 15–45 — the peak

Most people begin the main experience at about 20–25 minutes and hit the peak around 30–40 minutes.

What you may experience:

Dissociation. A sense that your body and mind are slightly separate — like watching your thoughts from a small distance. For most patients this is pleasant and calming. It is the signature ketamine state.
Visuals. With eyes closed, many patients see gentle geometric patterns, soft colors, or flowing imagery. Without eyes closed, the room may appear slightly different in a way that is hard to describe.
Emotional material. Sometimes memories surface. Sometimes you feel waves of unexpected emotion — sadness, gratitude, relief, compassion. This is normal and therapeutic. Do not fight it.
Altered time. 40 minutes will feel either much longer or much shorter than 40 minutes. Either is fine.
Floating. Many patients describe "floating," "expanding," or "dissolving." These are common and comfortable descriptions.

What you should not do:

Get up.
Respond to texts.
Fight the experience.
Try to analyze it.
Turn off the music (the music helps).

If the experience becomes uncomfortable — anxiety, a sense of "I don't like this" — the most useful response is to breathe, say to yourself I am safe, the medication will pass, and keep your eyes closed. The feeling will shift within minutes. I have never had a patient whose discomfort during a session lasted the full duration. It always moves.

If you feel nauseous, the next 30 seconds of nausea technique — lie flat, slow breathing, ginger candy if you have one pre-positioned — resolves it for the vast majority of patients.

Minutes 45–75 — the descent

The peak tapers over about 30 minutes. You will feel yourself coming back — the body becomes more solidly yours, thoughts sharpen, the music sounds normal again. You may feel lightly euphoric or simply clear. Many patients report a quiet, pleasant, reflective state.

This is often the most therapeutic window. Some of my patients have their most important insights here, not during the peak. Stay lying down, stay with the eye mask on or off as you prefer, and let your mind drift.

Keep the music on. Do not reach for your phone.

Minutes 75–120 — the reintegration

By 75 minutes post-dose, most patients are fully oriented. You can sit up. You can drink water. You should still not get up and walk around for another 30–45 minutes — balance is slightly off and you can trip.

Sit up slowly.
Drink water.
Eat a light snack — crackers, toast, an apple. Nothing heavy yet.
Take off the eye mask.
Continue the music if you want, or turn it off.
Journal briefly — 5–10 minutes, just whatever comes up.

The journal is optional but valuable. The insights from a ketamine session tend to be vivid in the moment and faded within 24 hours. A few sentences in the moment preserves more than you expect. See my integration post for more on what to write about.

2–4 hours after

You are functionally normal. You can make dinner. You can watch a movie. You can hold a conversation with your partner. You should not drive until the next day, and you should not make important decisions (financial, relationship, medical) until tomorrow. The ketamine has dosed through by now, but the neuroplasticity window it opened is still quietly active, and decisions made in that window are sometimes skewed.

Eat a normal dinner. Have water. Avoid alcohol — not because of a dangerous interaction at this point but because it disrupts the integration.

Go to bed at your normal time. Most patients sleep very well the night of a session.

The next morning

This is the part patients do not expect. The morning after your first session is often when you notice the antidepressant effect. You may wake up and feel something you have not felt in weeks or months — a certain lightness, a small amount of motivation, an absence of the usual heaviness. Some patients describe it as feeling "washed." Others as "clear." Others simply as "I feel like myself."

Not everyone notices it on the first session. Some patients take 2–3 sessions to notice. Some patients notice immediately. All of these are within normal range.

Journal again — 10 minutes, longer if you want. Write down what you noticed. Note any shifts, any memories, any observations. This is building material for the next session.

Eat a real breakfast. Drink water. Take your medications on their normal schedule. Resume normal activity.

What about exercise, work, and caffeine?

Exercise: Day after a session, yes. Do not do intense cardio the day of. See my exercise and ketamine post.
Work: Resume work the next day. Do not schedule a session for the morning of a demanding workday.
Caffeine: Normal caffeine the next morning is fine. Skip caffeine on the day of the session, since it makes the dissociation feel more activated.

When to message me

I give every patient a direct line. During your first session, message me for any of:

Nausea that is not resolving within 15 minutes.
A sustained rapid heartbeat (>130 bpm after the peak).
Anxiety that is not passing.
Anything that does not feel right.

After your first session, follow up with any of:

No noticeable effect at 24 hours (this is fine on session 1, more concerning on session 3).
A sense of dysphoria or unusual low mood.
A physical symptom (urinary issues, persistent headache, sleep disruption longer than one night).

The whole design of the at-home model is that a patient is never more than a message away from their physician.

A word on expectations

First sessions are a calibration. You will learn what the medication feels like, how your body reacts, how deep your standard dose takes you. Second sessions are already different — you know what to expect, you relax into it faster, and many patients find the antidepressant response larger on sessions 2 and 3 than on session 1.

Do not judge ketamine by one session. Judge it by the arc of a month of sessions, which is why I dose weekly for the first 4–6 weeks before stepping down.

The short version

Prep your space and your schedule the day before.
Stop eating 2 hours before. Hold the tablet 15 minutes.
Lie down, eye mask on, music playing.
Let the experience happen. Do not fight it.
90 minutes later, you are back.
Journal, eat, sleep normally.
Notice the next morning.

The whole thing fits in an evening. The mechanism is profound, but the logistics are ordinary, and after the first session most patients describe it as considerably less dramatic than they expected.

If you have not started yet, the eligibility check takes a minute and covers every medical question I would ask on a call. If you are ready to schedule, our pricing page has the full plan options. And if you want to keep reading while you think, what to expect and how ketamine works are the next two natural posts.

— Dr. Ben Soffer

Your First At-Home Ketamine Session: A Minute-by-Minute Walkthrough from Your Doctor