This topic examines the naming of drugs. ① Generic name: also known as the international generic drug name (INN), which usually refers to the active drug substance, not the final drug, so it is the same name used by pharmaceutical researchers and medical personnel, and a drug has only one generic name. (2) Trade name: also known as trade name, which is the name selected by the new drug developer when applying for drug listing. Refers to the names of drugs approved for marketing, mainly used in pharmaceutical preparations. ③ Chemical name: Each drug has a specific chemical structure. In order to accurately describe the chemical structure of drugs, their chemical names are usually used.