Viagra is the most well-known medication. Generic Viagra is the same produce as Brand Viagra, because it has the similar chemical structure and characteristics and helps males with the problem of erectile dysfunction and its most extreme from - impotence. This dysfunction is specified by absence of erection sufficient to carry out a sexual intercourse, or by an impaired erection. There are different causes that invoke erectile dysfunction such as psychological and physiological ones. Clinical tests have shown that 80 percent of patients who had erectile dysfunction, got better with the help of Viagra. The basic principal of Viagra effect is blood flux to the genitalia and averting its reflux. As a result, the erection can't be independent, but it happens only in the case of sexual excitement. It means that Viagra doesn't replace natural processes of sexual arousal, but only intensifies them. Moreover, Viagra makes oxytocin come into brain. It is a hormone that is responsible for romantic feelings.
It has to be said that Viagra has no influence on man's reproductive functions. There are also lots of traders on the internet who suggest online Cialis.
Levitra is supposed to be the safest medication ever. Levitra is rather young remedy and it is a novelty in the sphere of ED drugs. In some situations it is not suggested to cure erectile dysfunction with the utilizing of such remedies as Cialis and Viagra, for example, in people with cardio ischemia and diabetes. And the first factors that commonly call the progression of erectile disorder are cardio-vascular sicknesses, smoking, fatness and diabetes. But Levitra is the medication that has in the structure only one fifth of that Viagra. It makes Levitra special in the usage and diminishes different risk factors that can appear while using Viagra or Cialis. That makes Levitra a preparation for those people who have cardio-vascular diseases and diabetes. One more thing is that Levitra is much more effective in terms than Viagra. A patient is prepared to a sexual act only in 12 hours after taking. You would receive online Levitra on different internet sources.
Cialis is considered to be the most effective medication. Generic Cialis is a replica to a Brand Cialis by its chemical composition. It has the same result in treatment of erectile disorder, when a male has weakened erection and the strongest form of this disorder - impotence. Cialis supplies blood afflux to the penis, in doing so the erection doesn't appear involuntary, but only in response to sexual excitement. This system implies that Cialis does not substitute natural process, but only makes them stronger. Cialis doesn't affect man's reproductive functions. The basic difference of Cialis from Viagra, in the first place, is a less number of minimal necessary active elements. If for Viagra the minimum essential dose is 25 mg. (in most cases the minimum essential dose of the preparation is 50 mg), for Cialis it is 20 mg. The possibility of side effects disappears due to such low dosage. One more advantage of Cialis is more continuous time of efficiency.
The time of the efficiency of Viagra is 4 hours, of Levitra is 12 hours and of Cialis is 36 hours. If you are eager to order Cialis, you may do it on the web.