The systemic exposure of a drug in a designed formulation (generally referred to as treatment A or reference formulation) is compared with that of the same drug administered in a reference formulation (generally referred to as treatment B or reference formulation). What is this comparison called?
1) Bioavailability
2) Bioequivalence
3) Relative Bioavailability
4) Biowaiver
5) Absolute Bioavailability