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My wife is about to go on a skiing holiday to Austria.  I have got hold of a
German version of the description of Celiac Disease and what can and cannot
be eaten from an Austrian web-site.  She is worried however, that, despite
best efforts, she will have an "accident" and wonders whether it is safe to
use a diarrhoea "blocker" so as not to miss her skiing.  (In UK we have a
product called Imodium, which is pretty instantly effective.)  Obviously
she's not going to take Imodium before an accident as insurance, this is
almost certainly a _bad_ idea, but is it OK to use it after?

John