In economics and commerce, an end user is a person that uses a particular product. a product may be purchased by several intermediaries, who are not users, between the manufacturer and the end user, or be directly purchased by the end user as a consumer. for example, the end user of a pharmaceutical product is the patient who takes it, rather than distributors, pharmacists and physicians who may purchase it in their behalf. an end user of a computer system or software is someone who uses it. in contracts in some jurisdictions, the term end user is a legal term for a non-reseller. this legal construct is used in end-user license agreements (eulas); the end user is the user, rather than purchaser, of the subject of the agreement.