Cenforce-D Soft 60mg/100mg is used to treat erectile dysfunction (impotence) and pulmonary arterial hypertension (PAH) in men. Sildenafil citrate helps by relaxing these blood vessels, lowering the pressure in the lungs, and improving physical activity ability. For ED, Sildenafil works by increasing blood flow to the penis to help a man get and keep an erection. For PAH, Sildenafil works by relaxing the blood vessels in the lungs to allow blood to flow easily.