What is Sildamax? Sildamax 100 mg is an effective medicine that is prescribed by doctors to deal with erectile dysfunction and other same impotence problems. It contains the same active ingredient as Viagra named sildenafil citrate. Erectile dysfunction is basically a male sexual disorder in which a man is not able to achieve and maintain an erection needed for sexual intercourse. The main reason behind penile instability is an improper flow of blood through the nerves of the male reproductive organ. How does Aurogra 100 Tablet work? Aurogra 100 mg contains the active ingredient Sildenafil Citrate (found in the popular blue pill Viagra) which is a PDE 5 (Phosphodiesterase Type 5) inhibitor. It relaxes the smooth muscles present in the walls of the blood vessels and improves blood circulation to the penis. Due to the constriction of the arteries, blood doesn’t flow properly to the penis. Sildenafil Citrate present in Aurogra blocks the action of PDE 5 and enhances nitric oxide (NO)-mediated vasodilation in the corpus cavernosum by inhibiting cGMP breakdown. cGMP (cyclic guanosine monophosphate) is responsible for the contraction and dilation of blood vessels.