Does Sildenafil Citrate.
Sildenafil Citrate is a prescription drug that was developed originally as a means to treat pulmonary arterial hypertension. What the manufacturers discovered was that it also seemed to be a suitable remedy for erectile dysfunction. Discovered and manufactured by the pharmaceutical company Pfizer under the brand name Viagra, does Sildenafil Citrate, this unanticipated turn of events obviously had an impact on the marketing side of their product.
Through further study and testing this product became the go to treatment for erectile dysfunction in 1998. It works by reducing an enzyme [cGMP] found in the penis tissue that controls the blood flow. Since it hit the market a decade ago, sildenafil citrate has caused quite a stir. The discovery has even given way to an underground market for the drug, friends selling their prescriptions to friends! It also caused a flurry of activity among other drug manufacturers to develop competing brands. Tadalafil and Vardenafil are two competitors that are sold under the brand name Cialis and Levitra respectively.
Does Sildenafil Citrate (also known as Viagra) is a drug used to treat many Americans with various diseases such as, erectile dysfunction, altitude sickness, pulmonary hypertension and some athletes use it believing it will open their blood vessels to increase their performance.
Sildenafil citrate releases nitric oxide in the corpus cavernosum or the urethrae of the penis. The nitric oxide binds the receptors of the enzyme guanylate cyclase which then results in the increased levels of cyclic guanosine monophosphate that makes the muscle relax allowing increased blood flow and causes an erection.
Seeing a doctor and discussing your sexual habits with him will help your doctor determine the problem. The problem can either be mental or physical. To determine which of these problems it is, the patient is sometimes fitted with a penis sensor while he sleeps. Men get around 4-8 erections while they sleep usually during the REM cycle. If a man does not achieve an erection during sleep, then the problem is physical. The does Sildenafil Citrate get erections during the night, it is mental.
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