Medications are offered by health services throughout the world and under their responsibility. Medication a drug that be use for treatment, improvement and preventing the person’s health but it very dangerous if not using properly. Based in hospital setting, the most reporting a medication error. The National Coordinating Council for Medication Error Reporting and Prevention mentioned medication error as ” any preventable event that may cause or lead to inappropriate medication use or patient harm while the medication is in the control of the health care professional, patient harm while the medication is in the control of the health care professional, patient or consumer. Such events may be related to professional practice, health care product, procedures, and systems, including prescribing, order communication, product labelling, packaging, and nomenclature, compounding, dispensing, distribution, administration, education, monitoring and use”.