|
|
The generic name of impotence treatment drug Viagra is sildenafil citrate. Sildenafil is the first drug in the class of medicines called Phosphodiesterase Type 5 (PDE5) inhibitors. A path-breaking drug, Viagra sildenafil helps men suffering from impotence achieve and maintain an erection long enough to complete sexual intercourse.
Viagra sildenafil is a convenient to use oral medicine that needs to be taken an hour before anticipated sexual activity. Once taken Viagra remains active in the body for about 4 hours providing sufficient time to complete sexual intercourse.
Sildenafil as an impotence treatment drug
Before you seek a prescription for Viagra, it is important to understand how sildenafil citrate works as an impotence treatment drug.
|
An erection of the penis involves a complex chain of events that includes signals from the nervous system and the release of chemical messengers within the tissues of the penis. When a man is sexually excited, nitric oxide (NO) is released in the corpus cavernosum. The increased level of NO in the body activates the enzyme called guanylate cyclase, and this results in the increased level of a chemical messenger cyclic guanosine monophosphate (cGMP). The release of cGMP causes the smooth blood vessels in the penis to widen by relaxing a thin layer of muscle found in the blood vessel walls. This action allows more blood to enter the penis. The penis gets engorged with blood and therefore becomes firm and erect.
Cyclic GMP is broken down by phosphodiesterase type 5 (PDE5) - another chemical in the body. At this point, Sildenafil citrate inhibits the action of PDE5 enzyme and thereby prevents the breakdown of cyclic GMP. Through this mechanism, the blood vessels in the penis remain dilated for long, the blood keeps flowing into the penis and a man is able to maintain the erection long enough to complete sexual intercourse.
Since sildenafil citrate only enhances the actions of the chemical messengers responsible for producing an erection, the medicine will have no impact in the absence of these chemical messengers. This means, sildenafil cannot cause erection in a man in the absence of sexual stimulation. Once the sexual activity is over the erection should dissipate and the penis should return to its normal shape and size.
Viagra to cure ED
Viagra sildenafil was approved by the US FDA in 1998. Since then, the drug has helped millions of men with ED to enjoy a satisfying sexual intercourse. It may be noted here that Viagra does not cure ED, however it is proven to be extremely effective in helping men with ED to achieve firm erections and maintain them long enough to complete sexual activity.
|
Sildenafil citrate is proven to be both safe and effective in numerous clinical trials. However, it is important to keep Viagra precautions in mind before using the drug. Always take Viagra after consulting a doctor either face-to-face or via online clinics such as AtlanticDrugs.com. Inform the doctor about your medical conditions and medicines you may be taking. Never take sildenafil in conjunction with nitrate medicines often prescribed for chest pain.
Like all prescription medicines, sildenafil citrate may also cause you side effects. However, most sildenafil side effects are mild to moderate and are not likely to affect everybody who uses the drug. Some of the commonly reported sildenafil side effects include headache, facial flushing, nasal congestion and upset stomach. In rare cases, Viagra may cause serious side effects such as priapism (erection lasting more than 4 hours), stroke etc. Please inform your doctor in case you face rare Viagra side effects or if any of the side effects become bothersome.
|
|
|
You should also take necessary precautions when you buy viagra sildenafil if you are taking alpha blockers and protease inhibitors.
|
