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What is Drugs used for rare disease are known as: and explain in detail?
Ans. A. Orphan drugsOrphan drug are specific drugs for treatment of rare diseases (orphan disease). Due to limited sale of the drug, manufacturer of the drug cannot recover its cost.WHO defines a disease as orphan or rare if it affects 6.5-10 out of every 10,000 people.No unanimous acceptable definition in India. However, Organization for Rare Diseases in India (ORDI) defines a rare disease as one that affects 1 in 5000 people or lessIn US, a disease is orphan if it affects less than 2,00,000 people at a given point of time