Fioricet (Butalbital) and Barbiturate Withdrawal
Compiled from cited sources · not yet medically reviewedUpdated 3 sources
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For information only, not medical advice. Talk to a doctor before stopping or changing any medication. Medical disclaimer
⚠ Medical warning
Barbiturate withdrawal can cause convulsions and delirium and can be life-threatening. If you take butalbital (Fioricet) or another barbiturate daily, don’t stop suddenly. Get medical help to stop safely. Call 911 for a seizure or severe confusion.
Quick answer
Butalbital is a barbiturate in headache medicines such as Fioricet. Its FDA label says that after abrupt stopping of barbiturates, major withdrawal symptoms (convulsions and delirium) may occur within 16 hours and last up to 5 days, and withdrawal symptoms gradually decline over about 15 days. Butalbital’s half-life is about 35 hours. If you take it often, stop only with medical help.
Butalbital withdrawal timeline at a glance
When did you last use or take it?
⚠ Medical warning (read before using this)
Barbiturate withdrawal can cause convulsions and delirium and can be life-threatening. If you take butalbital (Fioricet) or another barbiturate daily, don’t stop suddenly. Get medical help to stop safely. Call 911 for a seizure or severe confusion.
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 |
|---|---|---|---|---|
| Early withdrawal | Within about 16 hours of a sudden stop | Anxiety, restlessness; Tremor, weakness; Trouble sleeping; Rebound headaches | Severe | A seizure, confusion, or seeing or hearing things that aren’t there: call 911; Hallucinations, confusion or delirium |
| Major withdrawal risk window | From about 16 hours up to 5 days | Convulsions (seizures); Delirium | Can be life-threatening | A seizure, confusion, or seeing or hearing things that aren’t there: call 911; Delirium, hallucinations or high fever |
| Easing | Intensity gradually declines over about 15 days | Symptoms slowly fade | Moderate | Any new seizure or confusion |
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Symptoms, phase by phase
The Fioricet label’s dependence section says major withdrawal symptoms (convulsions and delirium) may occur within 16 hours and last up to 5 days after abrupt cessation of barbiturates, and that the intensity of withdrawal symptoms gradually declines over approximately 15 days. The early symptoms we list (anxiety, tremor, poor sleep) are general sedative-withdrawal symptoms rather than specific figures from the label. The NHS lists taking too many painkillers as a common cause of headaches.
Early withdrawal: Within about 16 hours of a sudden stop
- Anxiety, restlessness
- Tremor, weakness
- Trouble sleeping
- Rebound headaches
Major withdrawal risk window: From about 16 hours up to 5 days
- Convulsions (seizures)
- Delirium
Easing: Intensity gradually declines over about 15 days
- Symptoms slowly fade
What makes withdrawal longer or shorter
- How often you take it. Daily or near-daily use builds more dependence than occasional use.
- Dose. Higher doses may raise the risk.
- Speed of stopping. Sudden stops are the danger; medically supervised stopping is safer.
- Other sedatives. Alcohol, benzodiazepines and opioids add risk.
When to see a doctor or get help now
- Before you stop, if you’ve been taking butalbital regularly.
- Call 911 for a seizure, hallucinations, severe confusion, a high fever or trouble breathing.
- Ask about other headache treatments; a doctor can help with medication-overuse headache.
Not sure where to start? Call SAMHSA’s free, confidential helpline at 1-800-662-4357, 24/7. See Get Help.
Tapering
Barbiturate withdrawal is usually managed with medical supervision. We don’t publish dose-by-dose schedules. Your prescriber should set your plan, and adjust it if symptoms appear.
Tips for getting through it
- Plan stopping with your doctor or a headache specialist
- Keep a headache diary, which the NHS says can help you work out what triggers your headaches
- Avoid alcohol and other sedatives
- Have someone with you in the first few days
Frequently asked questions
Is Fioricet withdrawal dangerous?
It can be. The label says barbiturate withdrawal can cause convulsions and delirium within 16 hours of stopping suddenly.
How long does butalbital withdrawal last?
The label says major symptoms may last up to 5 days and withdrawal gradually declines over about 15 days.
Will my headaches get worse when I stop?
They may. The NHS lists taking too many painkillers as a common cause of headaches. A doctor can help you manage headaches while you stop.
Is butalbital the same as a benzo?
No, it’s a barbiturate, but both are sedatives and both can cause dangerous withdrawal.
Next steps
- Track your dayEnter when you stopped to see where you are on the timeline
- Combine timelinesAdd other things you are stopping and see them on one chart
- Talk to othersAsk questions on our community forum (peer support, not medical advice)
- Read nextBenzo Withdrawal Timeline: Short- vs Long-Acting
- Get helpFree, confidential helplines and when to see a doctor
Talk to others going through it. Share your experience or ask questions on the Antidepressants & Other Prescriptions board in our community forum. Planning to stop? See the Tapering & Talking to Your Doctor board, and talk to a doctor before you stop. Forum posts are personal experiences, not medical advice. Please read the community guidelines.
Related timelines
- Benzo Withdrawal Timeline: Short- vs Long-Acting
- Is Alcohol Withdrawal Dangerous? Seizures, DTs and When to Get Help
- How Long Does a Caffeine Withdrawal Headache Last?
- Medication Overuse (Rebound) Headache: Ibuprofen, Acetaminophen and More
Sources
- FDA label: Fioricet (butalbital, acetaminophen, caffeine) (DailyMed)
- SAMHSA National Helpline
- NHS: Headaches
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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