What is the term for chemical equivalents which provide the same biological or physiological availability as measured by blood and urine levels?

The term that accurately describes chemical equivalents providing the same biological or physiological availability, as measured by blood and urine levels, is "biologic equivalents." This concept underscores the importance of pharmacokinetics, which examines how a drug is absorbed, distributed, metabolized, and eliminated from the body, indicating that two products produce the same therapeutic effect in terms of their bioavailability.

Biologic equivalents establish a crucial standard in pharmaceutical practice, especially in the formulation of generic drugs. These ensure that a generic version of a medication will act in a similar way to the branded medication it replicates, offering similar effectiveness in treatment.

While therapeutic equivalents refer to different drugs that achieve the same effect but may not be chemically identical, pharmaceutical equivalents focus on drugs that contain the same active ingredients in the same dosage form but do not necessarily guarantee equal bioavailability. Generic equivalents refer more broadly to non-branded versions of a drug that can differ in formulation or inactive ingredients, hence may not always ensure the same bioavailability profile.