Pharmaceutical labeling, also known as drug labeling or prescription labeling, refers to the written, printed, or graphic information displayed on drugs or their containers, as well as the accompanying materials. The primary purpose of drug labeling is to identify the contents of the drug and provide specific instructions and warnings regarding its administration, storage, and disposal.

The development of drug labeling has evolved over time due to the need for fair trade practices, identification of toxins, and public health awareness. Different countries and regions may have varying requirements for drug labeling, influenced by their healthcare systems, incidents involving drugs, and commercial considerations. Despite advancements in drug labeling, medication errors can still occur due to inadequate label formatting.