Role of Sildenafil for Fontan Associated Liver Disease (SiFALD) Study

Sildenafil will be initiated at 5 mg 3 times per day for the first week, and titrated to 10 mg 3 times per day for the second week and 20 mg 3 times per day from the third week to the end of the study period, 12 months.

Placebo capsules matching study drug