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The most widely used antibiotics nowadays are what are
called 'broad spectrum antibiotics'. This means that they are not specific to
one species of bacteria but non-selectively kill a wide range of species.
Unfortunately this means that the beneficial bacteria in our gut are destroyed
as well as the harmful ones that are the real target. As the bowel re-colonises
after finishing the antibiotics it is common for abnormal flora to predominate
causing a persistence of diarrhoea and abdominal upset.
Taking probiotics during and for a week after a course
of antibiotics greatly improves the chances of the bowel re-colonizing with beneficial bacteria thus
reducing the symptoms brought on by the antibiotics.
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