What components must generic medicines share with their brand-name counterparts?

Active ingredient, dosage form, strength, and route of administration

The foundation of accepting generic medication relies on regulatory mandates ensuring bioequivalence with the branded drug. This means generics are required by standards to contain the exact same active ingredient, possess the same dosage form and strength, and be administered via the same route as the original prescription drug. This standardization is what allows consumers and regulators to generally accept the efficacy of generics, even though individual patient responses might occasionally vary.