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Drug Interactions between Flomax and Toviaz

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

  • Flomax (tamsulosin)
  • Toviaz (fesoterodine)

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Interactions between your drugs

No interactions were found between Flomax and Toviaz. This does not necessarily mean no interactions exist. Always consult your healthcare provider.

Flomax

A total of 248 drugs are known to interact with Flomax.

Toviaz

A total of 258 drugs are known to interact with Toviaz.

Drug and food interactions

Moderate

tamsulosin food

Applies to: Flomax (tamsulosin)

Food may affect the intestinal absorption of tamsulosin. You should take tamsulosin approximately one-half hour following the same meal each day to ensure steady absorption and blood levels of the drug.

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Moderate

fesoterodine food

Applies to: Toviaz (fesoterodine)

Grapefruit juice may increase the levels of fesoterodine in your body. Let your doctor know if you experience excessive drowsiness, dizziness, irregular heartbeat, blurry vision, difficulty urinating, dry mouth, headache, gastrointestinal upset, or constipation while taking fesoterodine. 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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Therapeutic duplication warnings

No warnings were found for your selected drugs.

Therapeutic duplication warnings are only returned when drugs within the same group exceed the recommended therapeutic duplication maximum.

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.

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