- Visit 3 (week 2): End of Treatment Period 1/Washout (60-90 min). All procedures will be performed as described for Visit 2. A set of questionnaires will be administered. Adherence will be assessed by pill counts, use of rescue medication documented, and participants will be queried about any side effects experienced. Only rescue medication will be dispensed, to all participants, as they will begin a one week washout of treatment.