Factors influencing the shift of patients from one proton pump inhibitor to another: the effect of direct-to-consumer advertising.


BACKGROUND Switching from one proton pump inhibitor (PPI) to another is common, and may be related to factors other than efficacy and tolerability. OBJECTIVES The purposes of this study were to describe the incidence of therapeutic switching among PPI users, quantify direct ambulatory medical costs of switching, and characterize the relationship between… (More)


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