Impotence is defined as the persistent inability to attain or maintain an erection enough to allow satisfactory sexual intercourse. Erection is effectively caused by increased blood flow to the penis. Therefore, anything that stops blood flowing into the penis will stop the erection and result in impotence.

The association of impotence with blood circulation is very strong. You can easily understand it if you appreciate the fact that inadequate blood flow in the arteries of the penis is just a manifestation of what happens in blood vessels in rest of the body. You can get an idea about impotence, as why it is more common in patients who suffer from conditions such as heart disease, high blood pressure, elevated cholesterol and diabetes.

According to a recent study in the US , it was found that patients who were diagnosed with impotence at the start of the study had a higher incidence of heart attacks and strokes than others, after nine years. The conclusion of this study is clear that impotence can be an early warning for occurrence of heart disease.

Impotence treatment

Treatment for impotence has been revolutionized by the introduction of medications such as Viagra, Cialis, and Levitra. These medicines come in tablet form and people take them orally. These tablets are effective in about 70 percent of men with impotence problems.

About Viagra

Major drug maker, Pfizer, manufactures Viagra tablets for treating erection problems among men. A pioneer drug, Viagra, first addressed impotence problems among men. Ever since its launch in 1998, Viagra pills have never lost their popularity among men. After, Viagra, it was Cialis that entered market.

About Cialis

Cialis is an oral prescription drug for impotence, which is manufactured by a pharmaceutical company, Eli Lilly and company. It came after Viagra in the market.

Cialis contains tadalafil as the main ingredient, which acts as phosphodieterase type 5 inhibitor. It works by improving blood regulation in blood vessels of penis. Effects of Cialis lasts up to 36 hours and this is making this anti-impotence drug popular among men. After Cialis, Levitra is the latest anti-impotence drug in the market.

About Levitra

Levitra is also an oral prescription drug that acts as anti-impotence drug. GlaxoSmithKline manufactures Levitra, which contains vardenafil as its main ingredient. It also acts as a PDE5 inhibitor and works to supply blood in the penis. The effects of Levitra last up to 12 hours among users who take it before sexual activity.

These tablets are not aphrodisiacs, as many people think, and work only under sexual stimulation. For those men in whom all these three tablets prove ineffective, doctors prescribe other techniques that are available such as injections, vacuum pumps and inflatable prostheses.

The popularity of these anti-impotence drugs proves that impotence is common and can be effectively and easily treated in majority of men. Impotence gives an early warning about possible occurrence of cardiovascular diseases. If the impotence problem is detected and treated at the initial stage, it can help prevent serious diseases.