The investigators will enroll 85 adult patients, 18 years old and above, with relapsing remitting multiple sclerosis (RRMS), at the Massachusetts General Hospital MS Clinics in a pilot study of Pillsy electronic pill bottles. People with RRMS who are taking (1) fingolimod, (2) dimethyl fumarate, (3) terifluonomide, (4) diroximel fumarate, or (5) siponimod will be eligible. Patients must possess any type of smartphone capable of downloading the Pillsy application to be eligible. Per the Pillsy manufacturer, the Pillsy application is available on iPhones connected to the Apple App Store and smartphones running the Android operating system that are connected to the Google Play Store. Participants will be asked to use the Pillsy bottle for 90 days each. Participants will be randomized 1:1 to two conditions: 1) active reminders and 2) passive adherence tracking. Patients in the active reminders group will receive daily alerts through the Pillsy bottle, the Pillsy app, and their phone to remind them to take their pill. Patients in the passive adherence tracking group will not receive reminders and will instead have usual adherence monitored by the electronic pill bottle.
