How does Aurogra 100 Tablet work? Aurogra 100  contains the active ingredient Sildenafil Citrate (found in the popular blue pill Viagra) which is a PDE5 (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...