Therapeutic Equivalence and the Generic Competition Paradox

Munirul Haque Nabin 1 , 1 , Vijay Mohan 2 , 2 , Aaron Nicholas 3 , 3 ,  and Pasquale M. Sgro 4 , 4
  • 1 Deakin University
  • 2 Deakin University
  • 3 Deakin University
  • 4 Deakin University

Abstract

Following the passage of the Waxman-Hatch Act (1984), FDA approval for a generic drug requires the establishment of bio-equivalence between the generic drug and an FDA approved branded drug. However, a large body of evidence in the medical community suggests that bio-equivalence does not guarantee therapeutic equivalence; in some instances the lack of therapeutic equivalence can lead to fatal consequences for patients switching to generic products. In this paper, we construct a simple model to analyze the implications of therapeutic non-equivalence between branded and generic drugs. We show, theoretically and empirically, that this distinction can provide a plausible explanation of the generic competition paradox.

    • BE_pharma.xlsx
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The B.E. Journal of Economic Analysis & Policy (BEJEAP) is an international forum for scholarship that employs microeconomics to analyze issues in business, consumer behavior and public policy. Topics include the interaction of firms, the functioning of markets, the effects of domestic and international policy and the design of organizations and institutions.

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