The drug industry is comprised of companies that produce and sell chemically and/or biologically derived remedies used to cure disease or improve a patient's health. It is considered a defensive industry, because consumers typically continue to purchase the drugs even in times of economic distress. The industry is highly competitive, being dominated by a handful of large, multi-product, international, name-brand pharmaceutical companies. That said, the group also contains many small biotech companies, mostly unprofitable, that are attempting to develop a novel drug or two. The task of a drug company is to create a drug, obtain approval to sell it, and then sell it to make a profit.