Introduction Writing prescriptions is one of the key skills acquired by dental students during their studies. 1, 2 This process has principles and guidelines that should be followed to improve the efficacy of treatment. In order to be able to write effective prescriptions, adequate knowledge of these guidelines is necessary. A proper education and practice will lead to better observation of these principles and guidelines. 1-3 When writing a prescription, the patient's personal data and the data on the prescribed medication, including medication name, dosage and route of administration, are written. At the end of the prescription, the personal data of the physician writing the prescription is also included. Errors in interpretation and medical errors can result if any of this information is missing. 2,4 Inattention to these principles can include mistakes in the name of the drug or the abbreviations, dosage, route of drug administration, the drug form and the duration of its use. These errors might give rise to ineffective or hazardous treatment. Furthermore, this might also exacerbate or lengthen the medical condition involved, induce side effects and inflict injuries to the patient and may increase the treatment cost. 4,5 Medical errors are broadly divided into two categories: errors in the diagnosis and decision-making process and errors in the prescription stage, including a lack of important and necessary data (dose, route of administration, frequency of use, etc). Errors in writing out prescriptions are some of the most common but avoidable errors in medicine. This comprises 39%-74% of all medical errors. 4-6