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Respiratory Tract Infection Resource for Patients

Side-effects of Antibiotics

Sometimes people who are taking antibiotics may experience side-effects which can vary in severity depending on the individual and the type of antibiotic that has been prescribed.

Common side-effects include diarrhoea, feeling or being sick and fungal infections of the digestive tract or vagina. If you are affected by diarrhoea or vomiting, the effectiveness of some contraceptives may be disrupted so you should ask your doctor for advice about using additional forms of contraception.

On rare occasions, some people may be hypersensitive to antibiotics and have an allergic reaction which can affect the skin and other parts of the body.

Important:

  • If you have ever had an allergic reaction to an antibiotic before, remember to tell your doctor and if you suspect you may be allergic to your antibiotics stop taking them immediately and consult your doctor
  • It is also important to tell your doctor about any existing health problems you have, or if you are pregnant, breastfeeding or taking any other kind of medicine (including contraceptive pills, herbal remedies or non-prescription pills)

The information provided on this website does not replace a consultation with a medical professional. If you have any concern about your condition please contact a medical professional.

  • MYTHS AND FACTS
  • Myth: Antibiotics make you sleepy or tired.

    Fact: It is the infection for which you have been prescribed the antibiotics that is likely to be making you feel sleepy or tired. You should start to feel better once you have begun your course of antibiotics.

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