비아그라 (Viagra) is one of the very most well-known drugs on the planet and has been around for nearly two decades. It's a popular drug used to deal with erectile dysfunction (ED) in men, but what does it do? How can it work? What're its negative effects? Here we look at whatever you need to find out about Viagra.

What Is Viagra ?
Viagra is a brandname term for the medication sildenafil citrate. The active component, sildenafil, belongs to a type of drugs called phosphodiesterase-5 (PDE-5) inhibitors which work by increasing blood flow to the penis. This helps men achieve and maintain an erection when they're aroused. It ought to be noted that ED may be due to physical or psychological issues, so it's vital that you speak with your doctor before beginning any sort of treatment plan.
How Does It Work?
When a man becomes aroused, his body releases nitric oxide to the bloodstream. Nitric oxide activates a chemical called guanylyl cyclase which produces guanosine monophosphate (GMP). GMP relaxes smooth muscle cells in the corpus cavernosum—the spongy tissue forming the walls of the penis—which then causes increased blood flow in to the penis resulting in an erection. PDE-5 stops working GMP preventing this method from happening, however viagra works by inhibiting PDE-5 allowing GMP levels to go up causing an erection when aroused.
Viagra's Side Effects While there are many advantages to taking viagra , additionally there are potential side effects associated with it as well. The most frequent side effects include headaches, flushing, dizziness, indigestion, nasal congestion, back pain and blurred vision. In rare cases more serious negative effects can occur such as priapism—an erection lasting over 4 hours—heart attack or stroke. If you experience these more severe negative effects you need to seek medical attention immediately. Additionally viagra can talk with other medications so always speak together with your doctor before beginning any new medications or treatments for ED including viagra.

Conclusion:
Viagra is one of the most popular drugs on earth for treating erectile dysfunction (ED). It functions increasing blood flow to the penis which helps men achieve and maintain an erection when they are aroused. While there are many advantages to taking viagra such as for instance improved sexual performance, there can also be some potential side effects such as headaches and flushing so always speak with your doctor before beginning any new medications or treatments for ED including viagra. With proper use and following your doctor's advice you will have the ability to enjoy all that viagra is offering without experiencing any negative negative effects - providing you greater confidence during intimate moments!