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Will the vaccine react with any medication?
Please tell the doctor or nurse giving the vaccine about any important aspects of your medical history, and about any medication you are taking. Flu vaccine does not interact with any other vaccine or medication. However, any treatment that might reduce your immunity can reduce the effectiveness of the immune response. Vaccination can briefly affect the results of certain types of blood tests (serology tests), so if you have a blood test within a few days of being vaccinated, please ask the person taking the blood sample to mention your flu jab on the laboratory form.