To the Editor: It is possible that the therapeutic efficacy of medications is affected by commercial features such as lower prices. Because such features influence patients'
expectations,1 they may play an unrecognized therapeutic role by influencing the efficacy of medical therapies,
especially in conditions associated with strong placebo responses.2,3 To investigate this possibility,
we studied the effect of price on analgesic response to placebo pills.
Commercial Features of Placebo and Therapeutic Efficacy. JAMA. 2008;299(9):1016–1017. doi:10.1001/jama.299.9.1016
* * SCHEDULED MAINTENANCE * *
The JAMA Network Sites will be conducting routine maintenance from 10/20/2017 through 10/21/2017. During this window access to content and authentication may be intermittently available. The JAMA Store will be completely unavailable during the maintenance window.