Subjects can opt to continue on ranolazine regardless of if they agree to complete the Post Treatment Follow up visit. They do not have to continue with the study after the treatment phase has been completed in order to stay on ranolazine. The PI and study personnel will complete the required forms for the Ranexa Connect application if patient wishes to stay on drug. The Ranexa Connect Program assists patients in obtaining insurance coverage of ranolazine and financial assistance if needed.