Can you take flu shot while on antibiotics?
Emma Martin
Updated on March 19, 2026
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Considering this, can you get a vaccine while on antibiotics?
Not usually. For most kids, taking antibiotics for a mild illness (like an ear infection) shouldn't keep them from getting their vaccinations on schedule. Antibiotics do not interfere with the ingredients in vaccines or cause a bad reaction in a child who has just been vaccinated.
Furthermore, what happens if you get flu shot while sick? You may worry that getting vaccinated while sick could lead to lower protection levels since your immune system is already busy fighting an existing infection. However, a mild illness shouldn't affect the way your body reacts to the vaccine. Studies on vaccine effectiveness in people who are sick are rather limited.
Then, what medications interact with the flu shot?
Interaction between a vaccine and a drug has been reported only with influenza vaccine and four drugs (aminopyrine, phenytoin sodium, theophylline, and warfarin sodium), and with BCG vaccine and theophylline. Some of these interactions still are unconfirmed.
Can you get a flu shot with an ear infection?
Because a mild illness does not affect how well the body responds to a vaccine, your child can still be vaccinated if he or she has: A low grade fever (less than 101 degrees Fahrenheit) A cold, runny nose, or cough. An ear infection (otitis media)
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