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Male Sexuality >
Erectile Dysfunction Viagraź
Viagra is a drug developed by Pfizer for the
treatment of male impotency. Its pharmacological name
is sildenafil citrate. It was approved by the US Food
& Drug Administration in March 1998 for the
treatment of male impotency.
What does Viagraź do?
Viagra increases the body's ability to achieve and
maintain an erection during sexual stimulation.
Viagra does not produce spontaneous erections; sexual
stimulus must be present for erection to occur.
How does Viagraź work?
Viagra is dispensed as a pill and ingested orally.
After absorption into the bloodstream, it functions
as an inhibitor to an enzyme called phosphodiesterase
5 (PDE5) which is found primarily in the penis. The
enzyme, PDE5 breaks down cyclic GMP. Cyclic GMP is
produced during sexual stimulation, leading to penis
erection. The longer the cyclic GMP is allowed to
persist, the greater the chance for increased blood
flow to the penis, thereby generating an erection.
How long does Viagraź remain effective after
ingestion?
The half-life is approximately 4 hours. If is
recommended that sexual stimulation commence from 30
to 60 minutes after Viagra is taken.
What happens if there is no sexual
stimulation after Viagraź is taken?
Sildenafil, or Viagra, is excreted as metabolites
from the body in feces and urine.
What is Viagraź's success rate?
Viagra's success rate is about 75%.
Are there any side effects?
Yes, reportedly a small percentage of the study group
experienced headaches, nausea, facial flushing,
diarrhoea, urinary tract infection and visual changes
to colour sensitivity. Since viagra was released to the public,
there have been many heart attacks, erections lasting 24 hours or
more and other unpleasant symptoms.
Who should NOT take Viagra?
The main contraindication to prescribing Viagraź are
people who suffer from a rare disease, retinitis
pigmentosa, or those who are on nitroglycerin or
nitrous oxide.
Recently, it has been reported that 16 Viagraź
patients have died. While there is no direct evidence
that Viagra caused the deaths, readers should be
aware that sexual activity increases cardiac risk.
Male impotence is often a side effect of more serious
cardiovascular problems.
Viagraź MUST NOT be taken by men who are on
medications containing nitrates, such as
nitroglycerine tablets, as this could lead to
dangerous lowering of blood pressure. There is
evidence to suggest that Viagra may interact with
other medications in such a way as to increase health
risk. Men who have medical conditions, such as sickle
cell anaemia, leukaemia, or multiple myeloma, or
those with abnormally-shaped penis should also not
take Viagra because of a possibility of producing a
sustained erection.
Can I get Viagraź over-the-counter?
No, Viagraź should only be taken by prescription
from a qualified physician. You must tell your doctor
exactly what other medications you are taking. FDA
regulations do not permit Viagraź to be purchased
without a physician's prescription.
How often should Viagra be taken?
For those patients who have been prescribed Viagraź
by their doctors, Viagraź should only be taken once
per day, about 1 hour before sexual activity.
What Viagraź dosage is best?
Many physicians are now recommending Viagra therapy
begin with 25mg dosage, the minimum. Standard dose is
50mg. Dosages higher than 100mg per day are NOT
recommended.
Can Viagraź be combined with other
treatments for erectile dysfunction?
The use of such combinations is NOT recommended,
since no studies have been done to assess its safety
and effectiveness.
Are there concerns about taking Viagraź for
long periods of time?
Yes. Some health practitioners are concerned since
little is known about Viagra'sź long term effects.
 It has been estimated that up to 30
million American men suffer from sexual dysfunction
(impotence). Until recently, sexual dysfunction has
been effectively treated with injections, surgery,
and other procedures, many of which are painful and
embarrassing. In March 1998, the FDA announced that
Viagraź a new drug from Pfizer, Inc., has been
approved as treatment for male sexual dysfunction.
We think after our research that there are better options than
viagra, but please be warned that when buying viagra over the
internet, there is a great deal of fraud and you may just be buying
sugar pills or something worse, so to be safe, go and see you
medical doctor and get a prescription.
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