The Food and Drug Administration (FDA) has issued draft guidelines tha
t would require more rigorous standards for making pharmacoeconomic cl
aims. This paper critiques the guidelines and explores the objectives
of market regulation for health-related cost and effectiveness informa
tion on pharmaceutical products. It argues that the FDA should proceed
with caution and flexibility. In particular, regulations should recog
nize the potential usefulness of pharmacoeconomic information in helpi
ng health care decisionmakers make better-informed choices. They also
should acknowledge the enhanced ability of those using the information
to evaluate pharmacoeconomic studies and the degree to which the vari
ous players in the market can impose their own regulatory discipline.