This question examines the name of the drug. Trade names, also known as brand names, are only used by the name owners, and other enterprises are not allowed to use them and are protected by administration; Generic name is also called international generic drug name, which is not protected by patent and administration, and is the name used in Pharmacopoeia. Chemical names are names named according to the chemical structure of drugs, which reflect the real structure of drugs. Generic or chemical names are used for raw materials, and trade names are generally used for drugs approved for marketing.