Viagra is a brand name of sildenafil medicine that helps treat Erectile Dysfunction.
And Multiple factors cause ED; in most cases, it has been reported due to genetic factors.
Also, ED cannot be permanent, or it can also last longer than a decade.
Although viagra is an over-the-counter pharmaceutical solution, it is not supposed to be consumed for a longer time.
Suppose you have male sexual function difficulties (impotence and Erectile-dysfunction). It is working to increase blood flow to the penis to support a man to keep an erection.