Erectile dysfunction sometimes named "impotence", is inability to receive or keep sufficient erection for the sexual intercourses. The word "impotence" can be used also, for to describe other problems in sex, such as frigidity or problems with sex.

Erectile dysfunction, or ED, can cause a total absence erection or very short-term erection. These problems test about 30 million men all over the world According to the National Mobile Review of Health services (NAMCS), for each 1000 men in the United States, 7.7 visits to the doctor were because of ED.

The most widespread at present the preparation on treatment ED is "sildenafil" salt of lemon acid (Viagra).

At men of the senior age ED is a physical reason, such as illness, a wound, or by-effects of drugs. Any stress can cause blood-groove easing in a sexual member.

With the years approximately 5 % of 40-year-old men and about 15 %-25 % of percent of 65-year-old men test ED. But it not an inevitable fate of elderly men!

ED gives in to treatment at any age. The majority of men addresses for the help and comes back to a normal sexual life.

How occurs erection? The sexual member contains two chambers named cases cavernosa which operate length of body. The spongy fabric fills chambers. Cases cavernosa are surrounded by a membrane named a cover albuginea. The spongy fabric contains smooth muscles, fibrous fabrics, places, veins, and arteries. The urethra which is the channel for urine and sperm, passes along the bottom party of cases cavernosa and is surrounded by the case spongiosum.

Erection begins with touch or intellectual excitation, or both. Impulses from brain nerves force muscles of cases cavernosa to relax, allowing blood flows and to fill places. Blood creates pressure in cases cavernosa, forcing to extend with a member. The cover albuginea helps to trap blood in cases cavernosa, thus keeping erection. What causes dysfunction (ED)? As erection demands exact sequence of events, ED can occure, when any of events is destroyed. The sequence includes nerve impulses in a brain, a backbone, and area round fabrics of a sexual member, and the answer in muscles, fibrous fabrics, veins, and arteries in and about cases cavernosa.

Damage of nerves, arteries, smooth muscles, and fibrous fabrics, is frequent as a result of illness, is the most frequent reason of illnesses ED - such as a diabetes, nephritic illness, a chronic alcoholism, an atherosclerosis, vascular illness.

Medicines normalise erection can to be accepted oral, are entered directly in a member, or are inserted into an urethra in a tip of a member. In March 1998, Management under the control over products and medicines (FDA) has approved Viagra, the first pill which will restore erectionþ From now on, vardenafil a hydrochloride (Levitra) and tadalafil (Cialis), also has been approved.

Viagra, Levitra, and Cialis all belong to a class of the medicine, named phosphodiesterase (PDE). Accepted for an hour before sexual intercourse, these medicines work, increasing effects nitric, chemical which relaxes smooth fabrics, interferes a member during sexual excitation and the increased blood-groove allows.
               
While medicines improve the answer to sexual excitation, they do not cause automatic erection. The recommended dose for Viagra makes 50 mg, and the doctor can adapt this dose to 100 mg or 25 mg, depending on the patient. The recommended dose either for Levitra or for Cialis makes 10 mg, and the doctor can adapt this dose to 20 mg if 10 mg are insufficient. Lower dose of 5 mg is accessible to patients who accept other medicines or have conditions which can reduce ability of a body to use a preparation. Levitra also it is accessible in a dose on 2.5 mg. Any of these PDE should not be used some times day. Men who accept based on nitrate drugs, such as nitroglycerine for warm problems, should not use any preparation because the combination can cause sudden fall of a blood pressure.