According to the US FDA, a generic drug is a medication created to be the same as an already marketed brand-name drug in dosage form, safety, strength, route of administration, quality, performance characteristics, and intended use. These similarities help to demonstrate bioequivalence, which means that a generic medicine works in the same way and provides the same clinical benefit as the brand-name medicine. In other words, you can take a generic medicine as an equal substitute for its brand-name counterpart. This is not a new idea, many well-known household brands are in fact generic medicines, take the well-known drug paracetamol. You can buy many “branded” versions of paracetamol in UK, similar to the drug Acetaminophen in USA, it is produced in many different generic brands e.g. Tylenol, Tempra, and Panadol.