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Drug Interactions between clonazepam and Fioricet

This report displays the potential drug interactions for the following 2 drugs:

  • clonazepam
  • Fioricet (acetaminophen/butalbital/caffeine)

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Interactions between your drugs


acetaminophen butalbital

Applies to: Fioricet (acetaminophen / butalbital / caffeine) and Fioricet (acetaminophen / butalbital / caffeine)

Using acetaminophen together with butalbital may alter the effects of acetaminophen and cause serious side effects that may affect your liver. Call your doctor immediately if you experience a fever, chills, joint pain or swelling, excessive tiredness or weakness, unusual bleeding or bruising, skin rash or itching, loss of appetite, nausea, vomiting, or yellowing of the skin or the whites of your eyes. If your doctor does prescribe these medications together, you may need a dose adjustment or special tests to safely take both medications. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

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clonazePAM butalbital

Applies to: clonazepam and Fioricet (acetaminophen / butalbital / caffeine)

Before taking clonazePAM, tell your doctor if you also use butalbital. You may need dose adjustments or special tests in order to safely take both medications together. If you are already taking this combination you should contact your doctor if you have symptoms of breathing problems, confusion, or altered consciousness. It is important that you tell your healthcare provider about all other medications that you are using including vitamins and herbs. Do not stop using your medications without first talking to your doctor first.

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Drug and food interactions


caffeine food

Applies to: Fioricet (acetaminophen / butalbital / caffeine)

Consumer information for this minor interaction is not currently available. Some minor drug interactions may not be clinically relevant in all patients. Minor drug interactions do not usually cause harm or require a change in therapy. However, your healthcare provider can determine if adjustments to your medications are needed.

For clinical details see professional interaction data.

Therapeutic duplication warnings

Therapeutic duplication is the use of more than one medicine from the same drug category or therapeutic class to treat the same condition. This can be intentional in cases where drugs with similar actions are used together for demonstrated therapeutic benefit. It can also be unintentional in cases where a patient has been treated by more than one doctor, or had prescriptions filled at more than one pharmacy, and can have potentially adverse consequences.



Therapeutic duplication

The recommended maximum number of medicines in the 'tranquilizers' category to be taken concurrently is usually one. Your list includes two medicines belonging to the 'tranquilizers' category:

  • clonazepam
  • Fioricet (acetaminophen/butalbital/caffeine)

Note: The benefits of taking this combination of medicines may outweigh any risks associated with therapeutic duplication. This information does not take the place of talking to your doctor. Always check with your healthcare provider to determine if any adjustments to your medications are needed.

Drug Interaction Classification

These classifications are only a guideline. The relevance of a particular drug interaction to a specific individual is difficult to determine. Always consult your healthcare provider before starting or stopping any medication.
Major Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit.
Moderate Moderately clinically significant. Usually avoid combinations; use it only under special circumstances.
Minor Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan.
Unknown No interaction information available.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.