die from preventable medical errors in the U.S. each year, government and private sector efforts have focused on inpatient safety. Medical prescriptions While in 2000 the Committee on Quality of Health Care in America affirmed medical mistakes are an "unavoidable outcome of learning to practice medicine", at 2019 the commonly accepted link between prescribing skills and clinical clerkships was not yet demonstrated by the available data and in the U.S. legibility of handwritten prescriptions has been indirectly responsible for at least 7,000 deaths annually. Prescription errors concern ambiguous abbreviations, the right spelling of the full name of drugs: improper use of the nomenclature, of decimal points, unit or rate expressions; legibility and proper instructions; miscalculations of the posology (quantity, route and frequency of administration, duration of the treatment, dosage form and dosage strength); lack of information about patients (e.g. allergy, declining renal function) or reported in the medical document. There were an estimated 66 million clinically significant medication errors in the British NHS in 2018. The resulting adverse drug reactions are estimated to cause around 700 deaths a year in England and to contribute to around 22,000 deaths a year. The British researchers did not find any evidence that error rates were lower in other countries, and the global cost was estimated at $42 billion per year. Medication errors in hospital include omissions, delayed dosing and incorrect medication administrations. Medication errors are not always readily identified, but can be reported using case note reviews or incident reporting systems. There are pharmacist-led interventions that can reduce the incident of medication error. Electronic prescribing has been shown to reduce prescribing errors by up to 30%. After an error has occurred Mistakes can have a strongly negative emotional impact on the doctors who commit them. Recognizing that mistakes are not isolated events Some physicians recognize that adverse outcomes from errors usually do not happen because of an isolated error and actually reflect system problems. This concept is often referred to as the Swiss Cheese Model. This is the concept that there are layers of protection for clinicians and patients to prevent mistakes from occurring. Therefore, even if a doctor or nurse makes a small error (e.g. incorrect dose of drug written on a drug chart by doctor), this is picked up before it actually affects patient care (e.g. pharmacist checks the drug chart and rectifies the error). Such mechanisms include: Practical alterations (e.g.-medications