Text messaging interventions can be effective for promoting adherence to antihypertensive pharmacotherapy, and the article by Varleta and colleagues 1
in this issue of the Journal of Clinical Hypertensionshows that one-way, nontailored messages delivered once every 12 days can increase the percentage of patients with new-onset hypertension in a low-middle-income country who report adherence at 6 months. In this editorial, we discuss how this work fits into the existing science of text messaging interventions and the features that should be considered when designing them to maximize persuasiveness and long-term effectiveness.