<human>:  Can you tell me the business model for a pharmaceutical company?
<bot>: Sure. Let me first define some terms for you. “Pharmaceutical companies” are the entities who develop and sell drugs for medical treatment, and a “drug” is a product designed to help treat an illness or other medical condition. By definition, drugs are the items you find on a drugstore shelf, so “pharmaceutical companies” develop and manufacture drugs. The “business model” is a concept used to describe the way a company makes its profits. And “profits” are what a company receives after expenses, rather than losses, are paid. As you might guess, a drug company receives profits from selling drugs.