Eriacta is a medication that contains sildenafil citrate as its active ingredient. It is classified as a phosphodiesterase type 5 (PDE5) inhibitor. Eriacta is primarily used to treat erectile dysfunction (ED), a condition characterized by the inability to achieve or maintain an erection sufficient for sexual activity. It works by increasing blood flow to the penis, facilitating the achievement and maintenance of an erection. Eriacta is available in tablet form.