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Drug Interactions between allopurinol and Probenecid and Colchicine

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

  • allopurinol
  • Probenecid and Colchicine (colchicine/probenecid)

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Interactions between your drugs


allopurinol probenecid

Applies to: allopurinol and Probenecid and Colchicine (colchicine / probenecid)

Information for this minor interaction is only available at a professional reading level.

For clinical details see professional interaction data.

Drug and food interactions


colchicine food

Applies to: Probenecid and Colchicine (colchicine / probenecid)

Drinking large amounts of grapefruit juice can increase your blood levels of colchicine to dangerous levels. You should avoid the consumption of grapefruit or grapefruit juice during treatment with colchicine. Let your doctor know if you experience abdominal pain, nausea, vomiting, diarrhea, fever, muscle pain, weakness, fatigue, and/or numbness or tingling in your hands and feet, as these may be early symptoms of colchicine toxicity.

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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.


Anti-gout agents

Therapeutic duplication

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

  • allopurinol
  • Probenecid and Colchicine (colchicine/probenecid)

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.