This study is multicentric, single-blind, and interventional with a randomization into two parallel arm, between a standard of care information and an additional information of the patient, with a 12 month follow up.

The aim of this study is to evaluate the effectiveness of a personalized information program versus information provided from standard of care in patients taking Xarelto for Stroke Prevention in Atrial Fibrillation.

Inclusion Criteria:

• All patients treated with rivaroxaban chronically, (atrial fibrillation non-valvular under current AMM) for less than one year whatever anti vitamin K treatment history
• Affiliate or beneficiary of a social security system.
• Patient who formulated its "does not oppose" to participate in this research
• Age higher than or equal to 18 years

Exclusion Criteria:

• Opposition to participation
• Patient don't understand french language
• Patient does not have responsibility for the management of treatment (treatment administered by a nurse at home, or by caregivers)
• Tutorship or curatoship
• Law-protected patient
• Pregnant women or breast-feeding