Azithromycin 500mg (3 tablets) Travellers most likely to benefit from antibiotics for travellers' diarrhoea:
As many as 5 million people from the UK suffer from travellers' diarrhoea each year. Generally it is a problem when visiting resource-poor countries. If travelling to North America, Europe, or Australasia it is generally no more of an issue than in the UK. Half of people who get travellers' diarrhoea will have to alter travel plans, and some will find that they have ongoing problems even after returning home.
Diarrhoea (runny poo more than 3 times per day), and also sometimes abdominal pain and cramps, nausea, vomiting, fever, and blood in the stools.
The most common cause is a bacteria - either E. coli or campylobacter. However, it can also be caused by other bacteria, viruses, protozoa, parasites and toxins (bad chemicals) from foods.
When you are travelling and eating food and drink which may have been prepared in less hygienic conditions, your food and drink may easily have been contaminated and so give you diarrhoea. It is also easy to pick up these bugs on your hands and then get infected.
Most occurrences happen within the first week of travel. It usually only lasts 1-7 days during which time a small proportion of people can be stuck in bed. In a few people (5%) symptoms can last two weeks or longer. In rarer cases (about 1.5%) travellers' diarrhoea can lead to serious illness and even long-term bowel problems.