Men with problems with erection have used Viagra and similar sexual enhancements for years. A recent study found that PDE-5 inhibitors can cause more than a temporary erection. In some cases, PDE-5 inhibitors can even cure impotence permanently.

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Daily intake of PDE-5 Inhibitors

The researchers examined 64 men suffering from erectile dysfunction and treated them over the course of a year. The subjects were divided into 3 groups.

• Group 1 used a Viagra every night before going back to bed.
• Group 2 only took a Viagra immediately prior to having sexual intercourse.
• Group 3 did not take any medication.

The researchers reviewed the data and discovered a surprising result: around 57% of men who used the sexual enhancements every day no longer required any medication after discontinuing use. It was found that the cause of erectile dysfunction had been cured.

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Also, blood flow measurements in the penile veins showed significant improvement in test subjects. The blood flow increased from 28cm/s on average to 38cm/s.

The blood flow values also improved in the control group that took Viagra before having sex. However, this was only slightly more than ten per cent of test subjects. Researchers write that the blood flow values in the control group, who received no drug therapy, declined.

Researchers suspect that Nocturnal Erections may be the Cause

Researchers suspect that nocturnal erections are the reason for the remarkable improvements. Sexually mature men often experience uncontrolled erections while asleep. This stimulates blood flow and exercises the muscles of the erectile tissues, which helps maintain erectile function.

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Sildenafil enhances Erection

“Previous studies have shown sildenafil increases nocturnal erections,” researchers wrote in European Urology Supplements. “Repeated use of sildenafil can lead to improvement in erectile function after just one year even in severe cases.”

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