Advertising and prescription drugs: promotion, education, and the public's health.

The data presented by Joel Weissman and colleagues and by Robert Dubois do not justify the conclusions that the effects of pharmaceutical promotion are beneficial. Among consumers of direct-to-consumer advertising (Weissman and colleagues), those heavily influenced by such promotion were no more likely than others were to have new conditions diagnosed or confirmed and were much less likely to have laboratory studies ordered or lifestyle changes recommended. A second study (Dubois) arguing that drug advertising improves the appropriateness of prescribing relies on unconvincing ecological arguments. A greater presence of noncommercial, public health-oriented communication would make a more useful and cost-effective impact on the nation's health.