The main purpose of the drug Aurogra is to treat erectile dysfunction (ED) in males. The active element in it is sildenafil citrate, the same one that makes up Viagra. During sexual stimulation, sildenafil citrate increases blood flow to the penis, aiding in the onset and maintenance of an erection. Usually takes 30 to 1 hour before engaging in sexual activity, depending on demand. Depending on each person's response and medical guidance, the dosage may change.