Study Satisfaction
A total of 18 participants in the MITT population (22.5%) experienced a possible study-related AE (eTable 4 in Blinding was maintained, with 14 participants in the placebo (46.7%) and 11 participants in the bupropion SR (37.9%) groups correctly guessing their assignments. Participants gave a lower mean (SD) usefulness rating of study medication (3.8 [3.7]) than incentives (6.9 [3.1]); however placebo and bupropion SR groups rated their medication similarly (mean [SD] rating, 3.9 [3.7] vs 2.9 [3.4];