Viagra, initially studied for angina, is now known to treat erectile dysfunction. It works by facilitating the flow of blood to the penis. Always consult a doctor for medical information.
Viagra has some pretty great effects. (artem evdokimov/Shutterstock.com)
Viagra, also known as sildenafil from a scientific point of view, is one of the most famous drugs in the world, used to treat erectile dysfunction. However, few know that it was initially studied as a treatment for angina, a condition that causes chest pain due to restriction of blood flow to the heart.
During the clinical trial phase for angina, an unexpected side effect was noticed: Many male participants reported increased erections after taking the drug. This led, in 1998to the approval of Viagra as a treatment for erectile dysfunction.
But how does Viagra work to promote erections? The science behind erection is complex and involves several physiological processes. First, it is important to point out that for Viagra to take effect, sexual arousal is required.
When a person with a penis is aroused, a series of nerve signals are activated that lead to the release of nitric oxide in the penis’s corpora cavernosa, spongy erectile tissue. This causes the production of a molecule called cGMP, which causes the smooth muscle of the arteries in the penis to relax, allowing for greater blood flow and erection.
However, the erection is not permanent due to the PDE5 enzyme, which breaks down cGMP, interrupting the process and leading to the end of the erection. Viagra acts as a PDE5 inhibitor, preventing its action and allowing cGMP to build up, maintaining an erection longer.
Dr. Arthur Burnett, an expert in urology, compared the physiology of erection to driving a car, pointing out that you need to constantly press on the accelerator. Viagra helps keep the process going, ensuring that the erection is sustained as long as the user remains aroused.
It is important to note that Viagra may not work for everyone, as erectile dysfunction can be caused by several factors. However, scientific research is exploring new avenues for treatment, such as revolutionary gels and diet-based remedies.
It is essential to always consult qualified healthcare professionals with any questions you may have regarding medical conditions and not substitute professional medical advice for information found online.
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