Fildena, also known as generic Viagra, works by enhancing blood flow to the penis during sexual stimulation. It contains sildenafil citrate, which belongs to a class of drugs called phosphodiesterase type 5 (PDE5) inhibitors. Here's how it works:

Relaxation of Blood Vessels: When a man is sexually aroused, nitric oxide is released into the erectile tissue of the penis. Nitric oxide activates an enzyme that produces cyclic guanosine monophosphate (cGMP), which relaxes the smooth muscles of the blood vessels in the penis.

Increased Blood Flow: The relaxed muscles allow increased blood flow into certain areas of the penis, leading to an erection. This increased blood flow is essential for achieving and maintaining an erection.

PDE5 Inhibition: Sildenafil citrate in Fildena inhibits the action of PDE5 enzyme. PDE5 normally breaks down cGMP, so by inhibiting PDE5, sildenafil allows cGMP to accumulate. This helps to maintain an erection longer and more effectively.

Erection Maintenance: With sexual stimulation, the increased levels of cGMP in the penis prolong the relaxation of smooth muscles, allowing for sustained blood flow and maintaining the erection.

Know more information : genericday.com