What is the recommended dose and frequency of Fioricet (Butalbital, Acetaminophen, and Caffeine)?

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Last updated: April 26, 2025View editorial policy

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From the FDA Drug Label

One or two capsules every four hours. Total daily dosage should not exceed 6 capsules. The recommended dose of Fioricet is one or two capsules and the recommended frequency is every four hours, with a maximum daily dose of 6 capsules 1.

From the Research

Fioricet should be taken in a dose of 1-2 tablets every 4 hours as needed, with a maximum of 6 tablets in 24 hours, due to the risk of dependence from the butalbital component and potential for medication overuse headache 2, 3. The medication contains acetaminophen, butalbital (a barbiturate), and caffeine, and is typically prescribed for tension headaches.

Important Considerations

  • Treatment should be limited to short durations to minimize the risk of dependence from the butalbital component 2.
  • Patients should be aware of potential side effects including drowsiness, dizziness, and stomach upset.
  • It's essential not to exceed the recommended acetaminophen daily limit (3,000-4,000 mg) to avoid liver damage.
  • Alcohol should be avoided while taking this medication as it increases sedation risks.
  • A study from 2017 found that caffeine doses of 130 mg can enhance the efficacy of analgesics in tension-type headaches, which is relevant to Fioricet's formulation 4.

Clinical Guidance

If you're experiencing headaches requiring medication, please consult with your healthcare provider for proper diagnosis and personalized dosing instructions based on your specific condition and medical history.

Key Points to Discuss with Your Healthcare Provider

  • Your medical history and current health status
  • The severity and frequency of your headaches
  • Any previous treatments or medications you've used for headaches
  • Potential interactions with other medications you're taking
  • Strategies for minimizing the risk of medication overuse headache and dependence on butalbital 3.

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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