The SC 100 pill is a green, oval-shaped pill used to treat various conditions. Some conditions this pill can be used for include erectile dysfunction and Pulmonary arterial hypertension. This Pill treats erectile dysfunction in men. It is used to improve the ability to exercise in adults with pulmonary arterial hypertension (PAH; high blood pressure in the vessels carrying blood to the lungs, causing shortness of breath, dizziness, and tiredness). Children should not usually take the SC 100 Pill, but in some cases, a doctor may decide that sildenafil (SC 100 Pill) is the best medication to treat a child’s condition.