Viagra Brand is a medication which
was specially created to help millions of men
all over the world to fight against such an
unpleasant sexual disease as an erectile
disorder, which means the repeated inability to
get or maintain an erection that is not long and
firm enough for sex. Viagra is very powerful at
treating erectile dysfunction because it causes
more blood coming to penis. In order to
understand how Viagra works you should
understand the process of erection itself. When
a man is sexually stimulated, his penis's
arteries widen and relax. This helps blood to
flow into the tissues. Consequently these
arteries harden. In a word Viagra helps the
penis fill with enough blood and remain this
blood in the erectile tissues to cause a
successful erection. If to be more precise
Viagra works by blocking PDE5 (the degrading
action of phosphodiesterase). When PDE5 is
blocked, more of the chemicals responsible for
the erection remain, making muscles in the penis
do not constrict. Viagra helps blood to stay in
the penis longer. This allows blood to stay in
the penis longer, which allows the patient to
get and maintain a successful erection. When
sexual intercourse is over erection goes away.
Normally Viagra should not cause an erection
without sexual stimulation, because the
chemicals that cause an erection need to be
released into the penis. This can happen only
during the stimulation.
Many men are interested in this question. But
the answer cannot be the same for each man. It
depends upon such factors as patient's health
condition and age. Generally Viagra begins to
work in about 15 minutes after taking pills.
However for some men Viagra becomes active
within 30 minutes.
Supposedly Viagra should be effective for at
least four hours; however the erection begins to
decrease gradually after about two hours. |
