A Mobile Phone Based Medication Reminder Program

Reminders. Participants will receive medication-taking reminders from the researcher. These reminders are sent through the mobile application-BB Reminder on an unencrypted external device (a phone borrowed from Duke University School of Nursing and is used specifically for this study by the researcher). BB Reminder has the function that after inputting a patient's phone number and prescriptions, participants can receive reminders through text messages of the name, dosage, function, and administration route for every dose of his/her medications. The daily reminders will be sent to participants 15 minutes before every dose of their medications.

Educational materials. Participants will receive educational materials from the researcher. These educational materials will be sent through the mobile application-WeChat. The educational materials include short articles (\< 500 words) and/or pictures. They will be retrieved from the Chinese Cardiovascular Disease-Prevention Information Website (www.healthyheart-china.com), which is governed by the Chinese Ministry of Health. The validity of information from it is guaranteed. The retrieved educational materials will be screened by the cardiologist, the head nurse, and the researcher, before sending to participants. The educational materials will be sent to participants every other day at any time during 8 am and 10 pm.