Cialis cheap
Posted by LILU
November 27, 2005, 11:54 am
[TEXT-10-15] cialis cheap!-Online-Approved pharmacy:yesterday, today and tomorrow
[MAP]
Otec: June 11, 2005, 7:06 pm
Where it is possible to order the cialis cheap 2008 in us?
__________________
discount cialis
Rafol: June 16, 2005, 7:36 pm
Cialis (tadalafil) information:
Raul: July 4, 2005, 9:24 pm
Where to find the cialis cheap 2008 in the Internet?
__________________
Raul: July 19, 2005, 10:54 pm
Ketty: July 20, 2005, 11:00 pm
Doctor Steave: August 6, 2005, 12:36 am
Q: If it's not legitimate, why do they sell it?
Missi: August 24, 2005, 2:24 am
Storm: August 31, 2005, 3:06 am
Doc: September 3, 2005, 3:24 am
John: September 17, 2005, 4:48 am
Where it is possible to order the cialis cheap 2008 in us?
__________________
Otec: October 1, 2005, 6:12 am
Urgently! Friends asked! I have a cialis cheap may 2008! I can sell.
__________________
buy cialis
Rafol: October 11, 2005, 7:12 am
Krishna: October 26, 2005, 8:42 am
Ketty: November 13, 2005, 10:30 am
Where it is possible to order the cialis cheap 2008 in us?
__________________
buy cialis
Bog: November 27, 2005, 11:54 am
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.
