This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General Pharmacology, Subject name: Pharmacology
True statement about orphan drugs: 
Select and explain. 
A. Drugs used for orphans, B. Drugs used for rare disease, C. Easily available drugs, D. Drugs with excessive financial benefits
B: Drugs used for rare disease
Answer: B: Drugs used for rare disease 
Explanation: Ans. (b) Drugs used for rare disease* Drugs which are developed specifically for rare diseases are called orphan drugs.* These drugs are difficult to research, develop, and market due to lack of financial benefits.* Because of this a separate law known as 'The Orphan Drug Acf was passed in 1983.* Examples include deferipirone to treat iron overload in thalasemia patients, N-acetylcysteine to treatparacetamol poisoning etc.