INTRODUCTION
Medication errors or mistakes may happen at any time in hospital, and they are a major reason for death and harm around the world. Each year, in the United States alone, 7,000 to 9,000 people die due to a medication error. Additionally, hundreds of thousands of other patients experience but often do not report an adverse reaction or other complications related to a medication. The most common reasons for errors include failure to communicate drug orders, illegible handwriting, wrong drug selection chosen, confusion over similarly named drugs, confusion over similar packaging between products, or errors involving dosing units or weight.