CIALIS VS. VIAGRA
Whenever we hear about Cialis, the first thought that comes to our mind is that it's truly the first real competitor to Viagra, as being a very powerful medication for treatment of erectile dysfunction allows Cialis to compete successfully. Having appeared in 1998, Viagra succeeded in the market, generally due to being the first medicine of this kind. Nowadays a new oral drug Cialis, developed by ICOS Corporation, has already evoked a revolution on the pharmaceutical market. Moreover, a new product called Levitra is in the pipeline.
First of all let's not omit the fact that total worldwide sales of Cialis is about to crack all records and Cialis is predicted to overshadow Viagra's success of the late 90's.
Another key factor here is that among thirty million of the US patients suffering from erectile dysfunction and undergoing treatment, and approximately one hundred and seventy five million patients abroad, only a small percentage use Viagra. For a more obvious comparison let's just say that Viagra has reached the total profit of $1.5bn this year, white the total sales of these medications (Viagra, Levitra and Cialis) has exceeded $6bn.
Similar to Viagra, Cialis is a medication for erectile dysfunction treatment which improves the erection and basically renews sexual life of the patients. The mechanism of action of all these drugs is basically the same: the medication blocks the enzyme known as phosphodiesterase (that causes an erection to go flaccid) this way allowing an increased blood flow into the penis, which produces an erection. Cialis itself does not cause a sexual excitement but helps men to achieve a normal erection in response to sexual stimulation... Read more >>
|
