Effects of Triiodothyronine (T3) in Ischemic Heart Failure

Participants will be admitted to the General Clinical Research Center (GCRC) for up to 5 days and will receive study medication twice a day. Participants will receive oral T3 under the supervision of the Principal Investigator or qualified co-investigators at the GCRC. The study drug will be given within 30 days after enrollment.

The control group will have testing and study procedures as per protocol but will not be admitted to the General Clinical Research Center (GCRC) and will not receive the study medication. After completion of phase I, participants will be permitted to enroll in Phase II.