Buy generic cialis viagra online
Posted by Ketty
December 4, 2005, 12:36 pm
[TEXT-10-15] buy generic cialis viagra online!-Online-Approved pharmacy:yesterday, today and tomorrow
[MAP]
NIKI: June 30, 2005, 9:00 pm
Give somebody the to a site about the buy generic cialis viagra online?
LILU: July 9, 2005, 9:54 pm
A: The number of people selling these products outnumber the
Bog: July 26, 2005, 11:36 pm
Rafol: August 6, 2005, 12:36 am
Doctor Steave: August 22, 2005, 2:12 am
I know a web-site where there is a buy generic cialis viagra online. I can give the link.
Krishna: August 27, 2005, 2:42 am
Maria: September 10, 2005, 4:06 am
John: September 27, 2005, 5:48 am
Help to find in the Internet the buy generic cialis viagra online! Write on e-mail.
Krishna: October 12, 2005, 7:18 am
It is possible to order the buy generic cialis viagra online on mail?
Otec: October 19, 2005, 8:00 am
LILU: November 4, 2005, 9:36 am
The Friends, who heard what your opinion on the buy generic cialis viagra online about the buy generic cialis viagra online?
Otec: November 19, 2005, 11:06 am
Paul: December 4, 2005, 12:36 pm
The drug company Pfizer makes Viagra; Eli Lilly and Company makes Cialis. WebMD asked both companies for their comments on their drug's label change.
Erection of the penis is caused by the filling of the penis with blood. Filling occurs because the blood vessels that bring blood to the penis increase in size and deliver more blood to the penis, and, at the same time, the blood vessels that take blood away from the penis decrease in size and remove less blood from the penis.
Sexual stimulation that leads to an erection causes the production and release of nitric oxide in the penis. The nitric oxide causes an enzyme, guanylate cyclase, to produce cyclic guanosine monophosphate (cGMP). It is the cGMP that is primarily responsible for increasing and decreasing the size of the blood vessels carrying blood to and from the penis, respectively, and causing the erection. When the cGMP is destroyed by another enzyme, phosphodiesterase-5, the blood vessels return to their normal size, blood leaves the penis, and the erection ends. Tadalafil prevents phosphodiesterase-5 from destroying cGMP so that cGMP stays around longer. The persistence of cGMP leads to a more prolonged engorgement of the penis with blood.
