Understanding about
Erections & Erectile Dysfunction
When a man is aroused nerve signals
are sent from the brain and around the penis. These nerve signals cause
chemicals to be released. These chemicals relax muscles in the penis. Normally these
muscles are constricted so that blood cannot flow into the penis. When these
muscles relax large amounts of blood are able to enter the penis, causing an
erection. An erection is reversed when another chemical (known as Phosphodiesterase
type 5 (PDE5) breaks down the chemicals that caused the muscles to relax in the
first place. This causes the muscles in the penis to constrict again, which
results in blood leaving the penis.
Working of Viagra
Viagra works by blocking PDE5. When
PDE5 is blocked, more of the chemicals responsible for the erection remain so
the muscles in the penis do not constrict. This allows blood to stay in the
penis longer which allows the man to maintain an erection.Viagra is a prescription medication used to
treat erectile dysfunction, works by blocking a chemical in the body that is
normally responsible for reversing an erection. As a result, more of the chemicals
responsible for the erection remain, so the muscles in the penis do not
constrict. This allows blood to stay in the penis longer, which allows the man
to maintain an erection. Because Viagra has no effect on the chemicals that
cause an erection, it does not work without stimulation.
Viagra is a medication that has been licensed to treat erectile
dysfunction which is the repeated inability to get or keep an erection that is
firm enough for sexual intercourse.
Viagra is very effective at
treating erectile dysfunction. It works by blocking a chemical that causes
blood to leave the penis. More blood in the penis means an improved erection.
