Cialis vs viagra
Posted by Rafol
May 29, 2005, 5:48 pm
[TEXT-10-15] cialis vs viagra!-Online-Approved pharmacy:yesterday, today and tomorrow
[MAP]
NIKI: February 8, 2005, 6:48 am
So where it to find?
Bog: February 20, 2005, 8:00 am
Where to find the cialis vs viagra 2008 in the Internet?
__________________
LILU: February 23, 2005, 8:18 am
work, BUT you have no way of telling for sure what the active ingredient
Bog: March 1, 2005, 8:54 am
getting 7mg or 8mg. Or you might be getting a dangerously high dose
Rafol: March 15, 2005, 10:18 am
Storm: March 22, 2005, 11:00 am
Q: If it's not legitimate, why do they sell it?
Paul: March 30, 2005, 11:48 am
is or how much is present. You might be paying for a 20 mg dose but only
LILU: April 8, 2005, 12:42 pm
Help to find in the Internet the cialis vs viagra! Write on e-mail.
Krishna: April 20, 2005, 1:54 pm
Rafol: April 21, 2005, 2:00 pm
Krishna: May 10, 2005, 3:54 pm
getting 7mg or 8mg. Or you might be getting a dangerously high dose
LILU: May 18, 2005, 4:42 pm
So where it to find?
Krishna: May 26, 2005, 5:30 pm
John: May 29, 2005, 5:48 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.
