The main purpose of the drug aurogra 100mg is to treat male erectile dysfunction (ED). Its active component, sildenafil citrate, is a member of the family of medications known as phosphodiesterase type 5 (PDE5) inhibitors. When a man has erectile dysfunction (ED), his ability to get and sustain an erection appropriate for sexual activity is hampered by inadequate blood flow to the penis. By relaxing the smooth muscles of the penile blood arteries, sildenafil citrate increases blood flow, making it easier to get and maintain an erection when sexually stimulated.