Abstract
The article defined diarrhea, the etiopathogenetic classification, there is described a clinical picture of diarrheal disease and potential complications, issues of diagnosis and therapy of diarrhea. Particular attention is paid to the issue of diarrhea as a side effect of drugs, are the most common agents causing diarrhea.
Furthermore above is mentioned issue of polypharmacy in elderly patients and its impact on diarrheal diseases.