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Acting on the body with the same strength and similar bioavailability as the same dosage of a sample of a given substance. Used of differing formulations of a drug or chemical compound.
Etymology: Gk, bios + L, aequus, equal, valere, to be strong
1 (in pharmacology) pertaining to a drug that has the same effect on the body as another drug, usually one nearly identical in its chemical formulation but possibly requiring a different amount to see the same effect.
2 going in and out of the body at the same rate. bioequivalence, n.
bioequivalentReferring to a therapeutic agent that has the same pharmacologic potency and bioavailability as another drug at the same dose. Two products or formulations containing the same active ingredient are bioequivalent if their rates and extents of absorption—i.e., bioavailability—are the same.
1. Biologically equivalent to another agent, esp.another drug or therapeutic agent.
2. A drug whose effects on the body are indistinguishable from the effects of another.