Viagra, or sildenafil, works by increasing blood flow to the penis. This happens through inhibition of a specific enzyme called phosphodiesterase-5 (PDE5).
PDE5 normally breaks down a molecule called cyclic guanosine monophosphate (cGMP). cGMP relaxes the muscles in the blood vessels of the penis, allowing for increased blood flow. By blocking PDE5, Viagra allows cGMP levels to rise, resulting in improved erectile function.
The effect is specific to areas experiencing sexual stimulation. Without stimulation, Viagra won’t cause an erection.
Important Note: Viagra’s effectiveness depends on several factors, including overall health, other medications, and the specific individual. Always consult a doctor before using Viagra or any other medication for erectile dysfunction.
Remember to discuss potential side effects and interactions with your physician before starting treatment.
