Antidepressant Adherence for Depressed Adults in Primary Care

Inclusion Criteria: * Penn Medicine primary care outpatients * Clinical diagnosis of major depressive disorder * A score of 10+ on the Patient Health Questionnaire 9 (PHQ-9) * Age 21 to 64 years at the time of study entry * Prescribed an antidepressant by their primary care clinician * Express interest in taking antidepressant medication * Own a cell phone * Capable of using the electronic pill bottle * English-speaking Exclusion Criteria: * Treated with antidepressants in the past 90 days * Pregnant or breastfeeding * An active substance use disorder other than nicotine * A lifetime history of treatment for bipolar disorder or schizophrenia * Hospital admission or emergency department visit for suicidal symptoms in the past year * Lack capacity to provide informed consent * Using antidepressant more than 10 days at baseline assessment