Which term is used for medicines intended to treat rare diseases affecting fewer than 200,000 people?

• A. Orphan Drug Act
• B. Black Box Warnings
• C. Orphan Drugs
• D. Labeled Indications

Answer: (C)

The main idea here is the special category of medicines developed for very small patient populations. Drugs intended to treat rare diseases, defined in the U.S. as affecting fewer than 200,000 people, are called orphan drugs. The term highlights how these medicines serve conditions that wouldn’t attract sufficient market investment on their own, prompting incentives to spur their development. The Orphan Drug Act is the law that created those incentives, but it isn’t the name for the medicines themselves. Black Box Warnings refer to the strongest safety notices on labeling, and Labeled Indications are the approved uses listed on the drug label.