비아그라 (Viagra) is one of the very well-known drugs on earth and 's been around for almost two decades. It's a well known drug used to deal with erectile dysfunction (ED) in men, but what does it do? So how exactly does it work? What're its unwanted effects? Here we look at whatever you have to know about Viagra.

What Is Viagra ?
Viagra is a brand name for the medication sildenafil citrate. The active ingredient, sildenafil, belongs to a type of drugs referred to as phosphodiesterase-5 (PDE-5) inhibitors which work by increasing blood flow to the penis. This can help men achieve and maintain an erection when they are aroused. It ought to be noted that ED can be due to physical or psychological issues, so it's very important to speak together with your doctor before starting any type 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 to the penis leading to an erection. PDE-5 reduces GMP preventing this process from happening, however viagra functions by inhibiting PDE-5 allowing GMP levels to rise causing an erection when aroused.
Viagra's Side Effects While there are many advantages to taking viagra , there are also potential negative effects related to it as well. The most common 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 more than 4 hours—coronary arrest or stroke. If you experience any of these much more serious negative effects you need to seek medical attention immediately. Additionally viagra can communicate with other medications so always speak together with your doctor before starting any new medications or treatments for ED including viagra.

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