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Drug interactions between metronidazole and nitazoxanide

Results for the following 2 drugs:
metronidazole
nitazoxanide

Interactions between your drugs

There were no interactions found in our database between metronidazole and nitazoxanide - however, this does not necessarily mean no interactions exist. Always consult with your doctor or pharmacist.

metronidazole

A total of 398 drugs are known to interact with metronidazole.

nitazoxanide

A total of 37 drugs are known to interact with nitazoxanide.

Drug and food interactions

Major

metroNIDAZOLE food

Applies to: metronidazole

Consumption of alcoholic beverages or products containing alcohol or propylene glycol during treatment with metroNIDAZOLE is not recommended. Doing so may occasionally trigger a reaction in some patients similar to the disulfiram reaction, which includes unpleasant effects such as flushing, throbbing in head and neck, throbbing headache, difficulty breathing, nausea, vomiting, sweating, thirst, chest pain, rapid heartbeat, palpitation, low blood pressure, dizziness, lightheadedness, blurred vision, and confusion. Rarely, more severe reactions may include abnormal heart rhythm, heart attack, heart failure, unconsciousness, convulsions, and even death. Patients treated with metroNIDAZOLE should continue to avoid using any products containing alcohol or propylene glycol for at least 3 days until after completion of therapy. Talk to your doctor or pharmacist if you have questions on how to take this or other medications you are prescribed. 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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Moderate

nitazoxanide food

Applies to: nitazoxanide

Food can enhance the levels of nitazoxanide in your body. Nitazoxanide should be taken just after eating food. Do not take it on an empty stomach. This will make it easier for your body to absorb the medication.

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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.

Duplication

Amebicides

Therapeutic duplication

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

  • metronidazole
  • nitazoxanide

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

The classifications below are a guideline only. The relevance of a particular drug interaction to a specific patient is difficult to determine using this tool alone given the large number of variables that may apply.
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 information available.

Do not stop taking any medications without consulting your healthcare provider.

Further information

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

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