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Erectile dysfunction

Erectile dysfunction or impotence is the inability to achieve a satisfactory erection of the penis during sexual intercourse.

It is normal when you experience erectile dysfunction or ED sometimes, especially after the abuse of alcohol. The cause of ED may be psychological, organic or a combination of both. Stress, depression or anxiety, testosterone deficiency, diabetes and vascular disorders are often involved.

For 20% of men ED becomes a chronic problem: if you cannot get an erection or when your erection is not sufficient to complete sexual intercourse you can choose from a number of products like Viagra, Cialis and Levitra. Their active ingredients are called phosphodiesterase inhibitors.
They only work when you get a sexual stimulus and then cause the blood vessels in your penis to dilate. Consequently more blood flows into your penis resulting in an erection, which will stay until the sexual encounter is over.

There are three medicine for erectile dysfunction:
- Viagra, best known.
- Cialis, works long (48 hr).
- Levitra, works fast.

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