This report delves into the critical aspects of pharmacology, focusing on medication errors, ethical principles, and relevant drug legislation. The analysis begins by examining a case study where poor nursing practices led to adverse patient outcomes, highlighting the importance of adhering to the 'six rights of medication administration' and the NSQHS Medication Safety Standard. The report then explores ethical principles, particularly beneficence and non-maleficence, emphasizing their role in guiding healthcare professionals in making informed decisions. Furthermore, the report discusses the drug legislation and regulatory bodies, such as the Therapeutic Goods Administration (TGA), that govern medication safety and efficacy. The conclusion stresses the importance of nurses' awareness of these guidelines and laws to prevent malpractice and ensure patient safety. The report emphasizes the need for proper documentation and the balance between ethical principles and legislation in providing quality patient care.