INTRODUCTION A drug interaction is a pharmacological response which cannot be explained by the action of a single drug but may be due to two or more drugs acting simultaneously but The effects of a drug may also be changed by the presence of food, drink or by some environmental chemical agent. The outcome of a drug interaction may be harmful if the interaction results in increased efficacy or t...

Drug therapy is a complex and important process and because of the importance of drug interactions, especially in in-patients, accompanying problems and obstacles would exist as a result of concomitant use of drugs in these patients. For this purpose 3130 prescription order forms from Bou-Ali hospital were collected and all potential drug interactions presentwere extracted and evaluated in term...