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Drug Interactions between Lowsium and pyrimethamine / sulfadoxine

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

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Interactions between your drugs

Moderate

pyrimethamine magaldrate

Applies to: pyrimethamine / sulfadoxine and Lowsium (magaldrate)

ADJUST DOSING INTERVAL: The concomitant administration of antacids or absorbent antidiarrheals may significantly reduce the bioavailability of pyrimethamine by reducing its absorption. Therapeutic failure may result.

MANAGEMENT: Antacids and antidiarrheals should be taken at least 2 to 3 hours apart from pyrimethamine.

References

  1. "Multum Information Services, Inc. Expert Review Panel"
  2. Cerner Multum, Inc. "UK Summary of Product Characteristics." O 0

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Moderate

pyrimethamine sulfadoxine

Applies to: pyrimethamine / sulfadoxine and pyrimethamine / sulfadoxine

MONITOR: Coadministration of pyrimethamine in doses exceeding 25 mg per week with trimethoprim or sulfonamides may increase the risk of megaloblastic anemia and pancytopenia. The proposed mechanism is additive antifolate effects.

MANAGEMENT: Periodic clinical and laboratory monitoring for signs of folic acid deficiency and hematologic changes is advisable.

References

  1. "Multum Information Services, Inc. Expert Review Panel"
  2. Cerner Multum, Inc. "UK Summary of Product Characteristics." O 0

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Drug and food interactions

No alcohol/food interactions were found. However, this does not necessarily mean no interactions exist. Always consult your healthcare provider.

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.

See also

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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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