Viagra is the notion that is known almost by each male in the world. The product generic viagra, which is suggested by our medical corporation, is identical to trademark ?Viagra? by the chemical composition and effectiveness. It greatly intensifies the potency in males who have erection disorders and even aids in occasions of absolute impotency. This dysfunction means that a person has no ability to have normal erection to carry out a sexual act or his erection is impaired. There are different causes that invoke erectile disorder such as psychological and physiological ones. According to the statistics, 80 percent of persons, who used Viagra, felt better and completely recovered. The main principal of Viagra effect is blood influx to the penis and prevention its reflux. As a result, the erection cannot be involuntary, but it occurs only in the case of sexual arousal. The main point in this principal is that Viagra doesn't substitute the natural processes, but only intensifies them. Also, Viagra helps call romantic feelings by means of supplying brain with oxytocin. Oxytocin is a hormone that awakes romantic feelings.

It must be said that Viagra has no influence on man's reproductive functions. There are also a large number of traders on the Global Network who suggest online Cialis.

The safest medication is Levitra. Medication Levitra is the newest product, a novelty in the sphere of ED medications. There are some situations when it isn't recommended to patients to cure erectile dysfunction with the assistance of Cialis and Viagra. It can be persons with cardio difficulties or diabetics. At the same moment, among the aspects which in the first place lead to the development of erectile disorder, one may attribute cardio-vascular diseases, smoking, fatness and diabetes. But Levitra is the medication that has in the composition only one fifth of that Viagra. It makes Levitra special in the utilization and diminishes different risk factors that can occur while utilizing Viagra or Cialis. That makes Levitra a medication for those men who have cardio-vascular diseases and diabetes. Levitra is also much more effective in comparison with Viagra. A patient is prepared to a sexual act during twelve hours right after taking of the medication. You may receive online Levitra on diverse web sources.

Cialis is considered to be the most efficient preparation. Generic Cialis is a full analogue to Brand Cialis in terms of chemical composition and action, intended to heighten the potency in men suffering from erection difficulties (erectile dysfunction), comprising the ultimate form of an erectile disorder ? impotence. The blood flux to genitalia with the assistance of Cialis effect, it calls erection that may occur only in the case of sexual excitement, but not independently. This system implies that Cialis does not substitute natural process, but only intensifies them. And we have to say that Cialis doesn't affect on man's reproductive functions. The difference between Cialis and Viagra is in less quantity of minimal necessary active elements. If for Viagra the minimum necessary dose is 25 mg. (in most situations the minimum essential dose of the medication is 50 mg), for Cialis it is 20 mg. The probability of side effects disappears due to such low dosage. Cialis is also much better due to the time of its efficiency.

The time of the effect of Viagra is 4 hours, of Levitra is 12 hours and of Cialis is 36 hours. If you are willing to order Cialis, you may do it online.