Hvis alvorlig, vedvarende diarré optræder under eller efter behandling bør pseudomembranous colitis, som er en alvorlig, livstruende komplikation, oftest forårsaget af clostridium difficile, overvejes.
If severe, persistent diarrhoea occurs during or after treatment, pseudomembranous colitis which is a serious, even life-threatening complication mostly caused by clostridium difficile, should be considered,.