What are the possible side-effects?
Most side-effects of antibiotics are not serious. Common side-effects include soft stools (faeces), diarrhoea, or mild stomach upset such as feeling sick (nausea).some people have an allergic reaction to an antibiotic and some have died from a severe allergic reaction.
You should tell your doctor if you have any of the following side-effects:
- Severe watery diarrhoea and tummy (abdominal) cramps: signs of a serious bacterial infection of the gut - Clostridium difficile infection.
- Shortness of breath, hives, rash, swelling (of the lips, face, or tongue), fainting: signs of an allergic reaction.
- Vaginal itching or discharge: signs of vaginal thrush.
- White patches on the tongue: signs of oral thrush.
- Being sick (vomiting).