Viagra works by inhibiting phosphodiesterase type 5 (PDE5), a specific enzyme. PDE5 breaks down cGMP, a crucial molecule for penile erection. By blocking PDE5, Viagra allows cGMP levels to rise.
Increased cGMP relaxes the smooth muscles in the blood vessels of the penis. This relaxation increases blood flow into the penis, resulting in an erection.
This process requires sexual stimulation. Viagra doesn’t cause erections spontaneously; it enhances the body’s natural response to sexual stimulation.
The effect of Viagra typically lasts for four to five hours. Individual responses may vary.
It’s important to consult a doctor before using Viagra, especially if you have underlying health conditions or are taking other medications. They can assess your suitability for the drug and provide personalized guidance.
