Introduction: Hospital emergency departments provide health care to patients with various ailments and illnesses. If necessary, doctors write prescriptions for patients who visit emergency departments for their use after discharge from hospitals. It is important to inform patients about their prescribed medications because compliance with the prescription plays an important role in the success of the treatment. If a patient must use more than one medication, this might result in negative drug interactions. These undesirable developments may adversely affect the treatment process and cause many unplanned patient visits to emergency departments. This study was carried out to determine patient knowledge as related to the names, dosage, frequency, purpose and course of medications given on discharge from emergency departments.