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Drug Interactions between AstraZeneca COVID-19 Vaccine and sildenafil

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

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Interactions between your drugs

No interactions were found between AstraZeneca COVID-19 Vaccine and sildenafil. However, this does not necessarily mean no interactions exist. Always consult your healthcare provider.

AstraZeneca COVID-19 Vaccine

A total of 320 drugs are known to interact with AstraZeneca COVID-19 Vaccine.

  • Astrazeneca covid-19 vaccine is in the drug class viral vaccines.
  • Astrazeneca covid-19 vaccine is used to treat COVID-19.


A total of 337 drugs are known to interact with sildenafil.

Drug and food interactions


sildenafil food

Applies to: sildenafil

If you are receiving therapy with sildenafil you should avoid the regular consumption of large amounts of grapefruits and grapefruit juice. Grapefruit can raise the levels of sildenafil in your body and delay the time it takes for the medication to work. Do not increase or decrease the amount of grapefruit products in your diet 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.

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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.