Your First Ketamine Infusion: What to Expect from Start to Finish

Deciding to try ketamine therapy is a significant step—and it's completely normal to feel a mix of hope and nervousness as your first appointment approaches. The unknown can feel overwhelming, especially when you've heard varying descriptions of what the experience is like.

This guide is designed to demystify the process. By walking you through each stage—from the days before your appointment to the weeks after—we hope to help you feel prepared, informed, and empowered to get the most from your treatment.

Before Your Appointment: Getting Ready
Arriving at the Clinic
During the Infusion
After the Infusion
The Rest of Day One
The Days Following Treatment
Preparing for Subsequent Treatments
Frequently Asked Questions

Before Your Appointment: Getting Ready

Preparation for ketamine therapy actually begins well before you arrive at the clinic. Taking the right steps beforehand can significantly improve your experience and outcomes.

Not sure if ketamine is right for you? Read our guide: Is Ketamine Therapy Right for You? A Decision-Making Guide

The Week Before

Finalize Logistics

Confirm your appointment time and location: Know exactly where you're going and plan for potential traffic or parking challenges
Arrange transportation: You absolutely cannot drive after your infusion. Have a friend, family member, or rideshare planned for pickup
Clear your schedule: Plan for a quiet day; don't schedule important meetings or decisions for afterwards
Discuss work arrangements: Most people need the rest of the treatment day off

Medical Preparation

Your provider will have given you specific instructions, which may include:

Medication adjustments: Certain medications may need to be paused or modified
Benzodiazepines: Often held for 24-48 hours before treatment
Lamotrigine: Some providers adjust dosing
Other medications: Follow your provider's specific guidance

Never stop medications without explicit direction from your healthcare provider. If you're unsure, call and ask.

Physical Preparation

Avoid alcohol: For at least 24-48 hours before treatment
Stay hydrated: Drink plenty of water in the days leading up
Get good sleep: Being well-rested can improve your experience
Avoid recreational substances: Complete abstinence leading up to treatment

The Day Before

Finalize Your Mindset

Spend some time thinking about your intentions for treatment
Consider writing down what you hope to gain or explore
Practice any relaxation or meditation techniques you know
Avoid stressful situations or difficult conversations if possible

For more on mental preparation, see our guide on Set and Setting: Preparing for Ketamine Therapy.

Practical Preparation

Select comfortable clothes for tomorrow (layers are helpful—temperatures can feel variable)
Choose items to bring: headphones, eye mask, meaningful objects, playlist
Confirm your ride is arranged
Review any instructions from your provider

The Morning Of

Physical Needs

Fasting requirements: Most clinics ask you to fast for 4-6 hours before treatment
Morning medications: Take only as specifically directed by your provider
Hydration: Drink water until your fasting period begins (usually okay closer to appointment time)
Light eating: If eating is allowed, keep it light

Mental Preparation

Take time for quiet reflection or meditation
Review your intentions
Practice self-compassion—this is a brave step you're taking
Know that nervousness is normal and doesn't predict a difficult experience

What to Wear

Loose, comfortable clothing without restrictive waistbands
Layers (clinic temperatures vary, and your perception may shift)
Comfortable shoes you can easily remove
Avoid complicated jewelry or accessories

What to Bring

ID and insurance cards (if applicable)
Payment method for your portion
Headphones (often recommended—bring your own for comfort)
Eye mask (many clinics provide these, but bring your own if preferred)
Comfort items: A meaningful object, photo, or memento
Water bottle for afterward
Snacks for after (some people are hungry; others aren't)
Journal if you want to write reflections afterward

Arriving at the Clinic

Check-In Process

When you arrive, you'll go through a standard intake process:

Paperwork: Insurance verification, consent forms, intake questionnaires
Vitals: Blood pressure, heart rate, temperature
Final screening: The provider will confirm you're appropriate for treatment that day
Questions answered: Take this opportunity to ask anything lingering

Meeting Your Care Team

You'll meet the professionals who will support you:

The administering provider: Often an MD, NP, or certified nurse anesthetist
Support staff: Who will monitor you throughout
Possibly a psychotherapist: Some clinics incorporate therapy

Use this time to:

Share any last-minute concerns
Discuss your intentions if you feel comfortable
Ask about what to expect during the experience
Establish communication signals (if you need something during the infusion)

The Treatment Room

Treatment rooms vary but typically include:

A comfortable recliner or bed: Where you'll spend the infusion
Monitoring equipment: For blood pressure, heart rate, oxygen
Dim, calming lighting: Bright lights are usually minimized
Calming decor: Many clinics prioritize a peaceful atmosphere
Privacy: The session is generally just you and the monitoring staff

You'll get settled in your chair or bed and get comfortable. This is when to:

Use the restroom one final time
Put on your headphones and eye mask
Get blankets adjusted
Find your comfortable position

During the Infusion

Starting the IV

For IV ketamine, a small intravenous catheter will be placed:

Usually in your arm or hand
Brief pinch during insertion
Taped securely so you don't need to worry about it
Connected to the infusion pump that controls the medication delivery

The IV placement is typically the only physical discomfort involved.

The Onset of Effects

The infusion typically runs for 40-60 minutes. Effects usually begin within a few minutes:

Minutes 1-5:

You may notice a slight floating or lightness
Colors may seem slightly different
A sense of calm often begins

Minutes 5-15:

Effects intensify gradually
Dissociative effects become more apparent
You may feel increasingly detached from your body

Minutes 15-40:

Full effect level typically reached
Most intense part of the experience
Time perception may become distorted

Minutes 40-60 (infusion ending):

Effects begin to gradually decrease
Reconnection with environment begins
Often a period of peaceful reflection

What the Experience May Feel Like

Ketamine affects everyone differently, and even your own experiences may vary session to session. Common experiences include:

Physical Sensations:

Floating or weightlessness
Heaviness in limbs
Tingling or warmth
Feeling detached from your body

Perceptual Changes:

Visual effects: colors may seem more vivid, patterns may appear
Sound may seem different or distant
Time may seem to slow down, speed up, or become meaningless
Space may feel expanded or compressed

Mental/Emotional Experiences:

A sense of peace or calm
Emotional release (tears, laughter)
Profound insights or new perspectives
Feeling connected to something larger than yourself
Reviewing memories or life experiences
Experiencing dreamlike imagery

What You'll Remain Aware Of:

You'll likely hear things around you (though they may seem distant)
You can typically communicate if needed (though you may not want to)
You'll know where you are and that you're having a treatment
You're not unconscious—it's more like a deeply altered state

What to Do During the Experience

Helpful Approaches:

Let go: Try not to control or direct the experience; allow it to unfold
Stay curious: Approach whatever arises with interest rather than judgment
Breathe: If things feel intense, return attention to your breath
Remember it's temporary: The intense effects will pass within the hour
Trust the process: Difficult moments often lead to valuable insights

If Things Feel Difficult:

Remember you are safe and monitored
Breathe slowly and deeply
You can communicate with staff if needed (raising a hand is often easiest)
Remind yourself that the effects will subside
Intense experiences often carry the most therapeutic value

Common Helpful Thoughts:

"This is temporary"
"I am safe"
"I can allow this to be whatever it is"
"There may be something here for me to learn"

Staff Monitoring

Throughout your infusion, staff will:

Check your vital signs periodically
Ensure you're comfortable
Be available if you need anything
Generally maintain a quiet, supportive presence

Most clinics try to minimize disturbance during the experience while ensuring your safety.

After the Infusion

The Recovery Period

When the infusion ends, effects don't stop immediately:

First 15-30 Minutes:

Effects gradually diminish but you'll still feel altered
Staff will monitor your recovery
Stay seated or lying down
Don't try to stand yet

30-60 Minutes Post-Infusion:

Most acute effects have passed
You may feel drowsy, peaceful, or slightly disoriented
Staff will check that you're ready for discharge
Have a snack or water if desired

Assessment Before Discharge

Before you leave, staff will ensure:

Vital signs are stable
You can walk safely
You're oriented and communicating clearly
Your ride has arrived
You have follow-up instructions

You'll typically be at the clinic for 1.5-2 hours total.

Getting Home

Once discharged:

Go directly home or somewhere restful
Don't make stops that require decision-making
Have your ride stay with you for a while if possible
Take it easy for the rest of the day

The Rest of Day One

What to Expect That Evening

The rest of your treatment day is typically characterized by:

Continued mellowness: You may feel dreamy or floaty
Possible fatigue: Some people need extra sleep
Appetite changes: You may or may not be hungry
Emotional sensitivity: Feelings may be more accessible
Cognitive changes: Concentration may be reduced

Recommended Activities

Do:

Rest
Watch something light and pleasant
Listen to gentle music
Spend quiet time with supportive people
Eat nourishing food when hungry
Stay hydrated
Reflect or journal if you feel drawn to

Don't:

Drive
Make important decisions
Work
Engage in difficult conversations
Use alcohol or other substances
Exercise intensely
Take on stressful tasks

The Days Following Treatment

Day 2 and Beyond

Most people feel essentially normal by the day after treatment:

Cognitive function typically returns to baseline
Physical symptoms resolve
Some residual emotional processing may continue
Antidepressant effects may be emerging

Tracking Your Response

Pay attention to:

Your mood and energy levels
Sleep quality
Anxiety levels
Interest in activities
Suicidal thoughts (if applicable)
Overall sense of wellbeing

Many clinics provide rating scales to track these systematically. Even keeping a simple daily journal can help you and your provider understand your response.

The Emergence of Benefits

Antidepressant effects, if they occur, typically unfold like this:

Hours 1-24: Some people notice early shifts
24-72 hours: Peak response for many patients
Days 3-7: Effects plateau or continue building
Week 2+: Variable—some maintain gains, others may see return of symptoms

Remember that response varies widely. Some people feel dramatically better quickly; others have more subtle or gradual improvement.

Learn more about the science: The 72-Hour Breakthrough: Understanding Ketamine's Rapid Antidepressant Effect

Integration

The days after treatment represent what some call a "neuroplasticity window"—a period when the brain may be especially receptive to positive change. Consider:

Therapy: If you have a therapist, schedule sessions for this window
Journaling: Write about insights, memories, or perspectives that arose
Healthy practices: Exercise, social connection, time in nature
Intention-setting: Reinforce positive goals and behaviors
Self-compassion: Be patient with yourself as you process

For more on maximizing your results, see Integration Therapy: Maximizing the Benefits of Ketamine Treatment.

Preparing for Subsequent Treatments

If ketamine is helping you, you'll likely have additional infusions. Each session builds on the last.

What Changes Over Time

You'll know what to expect, reducing anxiety
You may be able to go deeper into the experience
Themes or insights may develop across sessions
Response patterns become clearer

Maintaining Momentum

Between treatments:

Continue tracking your response
Engage in integration activities
Communicate with your treatment team
Practice healthy habits that support mental health

Frequently Asked Questions

How long does a ketamine infusion take?

The infusion itself typically lasts 40-60 minutes for IV ketamine. Including check-in, preparation, the infusion, and recovery monitoring, plan to be at the clinic for approximately 2-2.5 hours total. You'll need the rest of the day to recover at home.

Will I be unconscious during ketamine treatment?

No, you won't be unconscious. Ketamine produces a dissociative state where you may feel detached from your body and surroundings, but you'll remain aware that you're having a treatment. You can typically communicate with staff if needed, though you may not want to talk during the experience.

Can I drive myself home after ketamine?

No, you absolutely cannot drive after a ketamine infusion. The effects impair your judgment, coordination, and reaction time for several hours after treatment. You must arrange for someone else to drive you home—a friend, family member, or rideshare service.

What if I have a bad experience during the infusion?

Difficult experiences during ketamine are not uncommon and are usually manageable. Staff are trained to support you through challenging moments. You can raise your hand to signal for help, and the dose can be adjusted if needed. Remember that the effects are temporary and will subside. Many patients find that challenging experiences ultimately lead to therapeutic insights.

How many ketamine infusions will I need?

Most protocols involve an initial series of 6 infusions over 2-3 weeks (the "induction phase"). After this, maintenance treatments are typically needed to sustain benefits, ranging from weekly to monthly depending on your response. Your provider will create a personalized plan based on how you respond.

What should I eat before ketamine treatment?

Most clinics require you to fast for 4-6 hours before treatment to reduce nausea risk. You can usually drink clear liquids (water) until a couple hours before. Follow your specific clinic's instructions. After treatment, eat light, easily digestible foods when you feel ready.

Key Takeaways

Preparation matters: Physical, mental, and logistical preparation helps you get the most from treatment
The experience varies: Ketamine affects everyone differently; stay open and curious
You're always safe: Staff monitor you throughout, and effects are temporary
Let go and allow: Fighting the experience often makes it harder; surrendering to it often makes it easier
Recovery is quick: Most people feel normal by the next day
Integration extends benefits: How you use the days after treatment matters for outcomes
It gets easier: Subsequent sessions are typically less anxiety-provoking as you know what to expect
Track your response: Monitoring helps you and your provider optimize treatment

Ready to Take the Next Step?

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Have Questions?

Our team can help answer your questions about ketamine therapy and connect you with the right resources.

This article is for educational purposes and does not constitute medical advice. Follow your specific provider's instructions, which may differ from general guidance provided here.

Your First Ketamine Infusion: Complete Patient Guide