
Erectile dysfunction can be a total inability to achieve erection, an inconsistent ability to do so, or a tendency to sustain only brief erections. These variations make defining ED and estimating its incidence difficult. Estimates range from 15 million to 30 million, depending on the definition used. The increase happened gradually, presumably as treatments such as vacuum devices and injectable drugs became more widely available and discussing erectile function became accepted.

Oral medications used to treat erectile dysfunction include selective enzyme inhibitors (e.g., sildenafil [Viagra], vardenafil HCl [Levitra] and tadalafil [Cialis])
Selective enzyme inhibitors are available by prescription and may be taken up to once a day to treat ED. They improve partial erections by inhibiting the enzyme that facilitates their reduction and increase levels of cyclic guanosine monophosphate (cGMP, a chemical factor in metabolism), which causes the smooth muscles of the penis to relax, enabling blood to flow into the corpora cavernosa

Impotence or, more clinically, erectile dysfunction is the inability to maintain an erection of the penis for satisfactory sexual intercourse regardless of the capability of ejaculation. Unfortunately the facts about this subject have often become intertwined with sensational advertising. In the 1930s the American radio airwaves were bombarded with such advertising, first from domestic stations and then upon action by the American Medical Association the media blitz was shifted to superpower Mexican border-blasters. Today the television airwaves are awash with commercials for products such as Viagra, Cialis and Levitra which all in one way or another claim to cure the same problem of impotence.

Impotence has been a factor in the lives of most men for generations, but with Viagra, Cialis, Levitra and other ED drugs, it no longer has to remain a deep, dark secret. As uncomfortable as the subject is to discuss, there is such a wide range of treatment options now available that most cases can be easily handled. The key, and often the most difficult step to take, is opening up to your doctor about it.

Viagra relaxes muscles and increases blood flow to particular areas of the body. Sildenafil under the name Viagra is used to treat erectile dysfunction (impotence) in men. Another brand of sildenafil is Revatio, which is used to treat pulmonary arterial hypertension and improve exercise capacity in men and women. Sildenafil may also be used for purposes other than those listed here.

Deciding that it's time to find out about ED (erectile dysfunction) treatment can be difficult. But once you do, you may find that dealing with ED can get a lot easier. The good news is that most cases of ED can be treated. >Cialis is the only oral prescription medicine for ED clinically proven to both work up to 36 hours and work in some men as fast as 30 minutes.

Levitra is a prescription medicine that is used to treat erectile dysfunction (ED). Men taking nitrate drugs, often used to control chest pain, should not take levitra. Such combinations could cause blood pressure to drop to an unsafe level. As with all ED drugs, there is a rare risk of an erection lasting longer than four hours. To avoid long-term injury, seek immediate medical attention.
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