Pharmaceutical preparations for the treatment of heart diseases and disorders, Pharmaceutical preparations for the treatment of cardiac diseases and disorders; Pharmaceutical preparations for the treatment of cardiac diseases and disorders, namely, single ventricle heart disease (SVHD), including SVHD subjects who have undergone Fontan Palliation; medicinal preparations for cardiac disease, namely, single ventricle heart disease (SVHD); pharmaceuticals, namely, drugs for the treatment of cardiac disease, namely, single ventricle heart disease (SVHD), including SVHD subjects who have undergone Fontan Palliation