Aurogra 100, which contains sildenafil, functions by preventing PDE 5 (phosphodiesterase type 5) from functioning. Aurogra 100 mg increases the release of Nitric Oxide (NO) via inhibiting PDE5.

Cyclase, an enzyme that is activated by nitric oxide, raises the levels of cyclic guanosine monophosphate (cGMP) even further. An erection is brought on by the increased cGMP because it relaxes the smooth muscles of the penis and improves blood flow.