Bioequivalence means that the active ingredient in a generic medicine is absorbed into the body at the same rate and amount as in the brand-name product. This ensures that the generic delivers the same therapeutic effect as the brand counterpart and can be safely substituted with the brand product. Bioequivalence gives consumers, patients, physician and pharmacist the assurance that FDA-approved generic medicines provide the same medicine and the same clinical results, with the same safety profile, as their brand counterparts.
Federal law requires that, in order to receive FDA approval, generic drugs contain the same active ingredient as the brand-name counterpart, be the same strength and dosage form (tablet, capsule, etc.), and have the same route of administration (oral, topical, injectable, etc.). It is important to know that bioequivalent drugs, whether brand-to-brand or generic-to-brand, work in the body in the same way and provide the same safety and efficacy profile. In short, generics provide the same medicines, but at a more affordable cost.