Caffeine Withdrawal Timeline: Day by Day

Published by Joseph, EditorCompiled from cited sources · not yet medically reviewedUpdated Oct 26, 20265 sources

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For information only, not medical advice. Talk to a doctor before stopping or changing any medication. Medical disclaimer

Quick answer

Caffeine withdrawal usually starts 12 to 24 hours after your last caffeine, is worst at around 20 to 51 hours (roughly days 1 to 2), and usually lasts 2 to 9 days. Headache is the most common symptom. It can happen even if you drink as little as about one cup of coffee a day (about 100 mg), and after as few as 3 days of regular use.

Caffeine withdrawal timeline at a glance

When did you last use or take it?

This places the typical ranges from this article's sources on your date. It is not a prediction or a diagnosis, and being past a phase does not mean symptoms or risks are over.

A rough guide from published sources, not medical advice. Everyone is different.

Phase	When	What you may feel	Severity	Red flags
Onset	12 to 24 hours after your last caffeine	Headache starting; Tiredness and low energy; Feeling less alert or drowsy	Mild	—
Peak	About 20 to 51 hours (day 1 to 2)	Headache, often the worst part; Fatigue, low energy, drowsiness; Low or depressed mood, irritability; Trouble concentrating, feeling foggy; Some people get flu-like symptoms, nausea or vomiting, or muscle pain or stiffness	Moderate	A sudden, severe headache unlike any you’ve had; Headache with fever, stiff neck, confusion, weakness or vision changes
Easing	Day 3 to day 9	Symptoms fade day by day; Headache and tiredness may come and go	Mild	Symptoms still getting worse after a week

Print a daily symptom log for this timeline · My quit tracker

Symptoms, phase by phase

Researchers who reviewed decades of caffeine studies (Juliano and Griffiths, 2004) confirmed these withdrawal symptoms: headache, fatigue, decreased energy, decreased alertness, drowsiness, decreased contentedness, depressed mood, difficulty concentrating, irritability and feeling foggy. Flu-like symptoms, nausea or vomiting, and muscle pain or stiffness were also likely. In experimental studies, about 50% of people got a headache, and about 13% had symptoms bad enough to affect daily life.

Onset: 12 to 24 hours after your last caffeine

Headache starting
Tiredness and low energy
Feeling less alert or drowsy

Peak: About 20 to 51 hours (day 1 to 2)

Headache, often the worst part
Fatigue, low energy, drowsiness
Low or depressed mood, irritability
Trouble concentrating, feeling foggy
Some people get flu-like symptoms, nausea or vomiting, or muscle pain or stiffness

Easing: Day 3 to day 9

Symptoms fade day by day
Headache and tiredness may come and go

What makes withdrawal longer or shorter

How much caffeine you usually have. Symptoms are more likely and stronger at higher daily doses, but they’ve been seen at doses as low as 100 mg a day.
Stopping all at once vs. cutting back. Stopping suddenly is more likely to cause symptoms than tapering.
Hidden caffeine. Soda, tea, chocolate, energy drinks, pre-workout and some pain relievers contain caffeine, which can keep withdrawal going or restart it.

When to see a doctor or get help now

Your headache is sudden and severe, or comes with fever, stiff neck, confusion, weakness, numbness or vision changes. Get urgent care.
Symptoms aren’t improving after about 9 days.
You have a health condition (such as heart problems or migraines) or take medicines and aren’t sure what’s safe to use for symptoms.

Not sure where to start? Call SAMHSA’s free, confidential helpline at 1-800-662-4357, 24/7. See Get Help.

Tapering

StatPearls recommends tapering rather than stopping suddenly if you want to avoid withdrawal. A common approach is to cut your daily caffeine a little at a time (for example, swapping one drink for a half-caf or decaf version) every few days. If symptoms hit hard, a small amount of caffeine relieves them.

Tips for getting through it

Cut back gradually: the FDA says that if you have caffeine every day and want to cut back, it’s best to do so gradually
Drink water: Cleveland Clinic lists staying hydrated as one way to ease caffeine withdrawal
For the headache, Cleveland Clinic says over-the-counter pain relievers are generally safe when used as directed and suggests using them no more than two days a week; it also notes many contain caffeine, which keeps the dependence going. Ask a pharmacist which one is safe for you
Plan your quit for a few low-pressure days, like a weekend
Get extra sleep and light exercise
Read labels: decaf coffee still has a small amount of caffeine

Frequently asked questions

How long does a caffeine withdrawal headache last?

For most people the headache peaks around day 1 to 2 and fades over the next several days. The full withdrawal usually lasts 2 to 9 days.

Can you get caffeine withdrawal after only a few days?

Yes. Studies have found withdrawal after as few as 3 days of regular use.

How much caffeine causes withdrawal?

Symptoms have been seen at doses as low as about 100 mg a day, roughly one cup of brewed coffee.

Is caffeine withdrawal dangerous?

It’s usually uncomfortable rather than dangerous. A severe or unusual headache, or one with fever, stiff neck or confusion, needs urgent medical care because it may be something else.

Next steps

Talk to others going through it. Share your experience or ask questions on the Caffeine & Sugar board in our community forum. Forum posts are personal experiences, not medical advice. Please read the community guidelines.

Sources

Last reviewed: October 25, 2026. Researched and written by Withdrawal Timelines from the cited sources. This article has not yet been reviewed by a medical professional. See How We Review and our Medical Disclaimer. This is general information, not medical advice.

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