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Buy Viagra Online
Sildenafil For Male Impotency
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Viagra
(sildenafil) tablets are provided in dosages of 25, 50 and 100
milligrams. The pills are blue, rounded-diamond- shaped, film coated
tablets. Make sure you except no substitute. While some web sites say they
are dispensing Viagra, in truth they are dispensing a cheap
substitute. Only pills with the above configuration are the genuine
product.
HOW DOES VIAGRA WORK?
Viagra is the brand name for
sildenafil. When sexual stimulation begins nitric oxide (NO) is released
into the spongy tissue of the penis. NO then activates an enzyme that
increases the production of cyclic guanosine monophosphate (cGMP) the
substance that relaxes the spongy tissue of the penis and facilitates an
influx of blood. As specific enzymes slowly degrade cGMP the penis will
slowly loose its ability to sustain an erection. Viagra works by
inhibiting those enzymes that degrade cGMP, thereby enhancing ones ability
to obtain and sustain an erection.
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HOW EFFECTIVE IS VIAGRA?
Over 21 studies have been done to evaluate the efficacy
of Viagra. Evaluation of drug activity was most often done using a
self-assessment questionnaire. During a 6-month open labeled study,
Viagra was found to improve sexual function in 88% of those
treated. This included frequency, firmness, and maintenance of an
erection; frequency of orgasm; frequency and level of desire; frequency,
satisfaction and enjoyment of sexual intercourse; and overall relationship
satisfaction.
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WARNINGS:
If you take any medicines that contain nitrates - either regularly or as needed -
you should never take Viagra.
If you take Viagra with
any nitrate medicine or recreational drug containing nitrates, your blood
pressure could suddenly drop to an unsafe level. You could get dizzy,
faint, or even have a heart attack or stroke. Nitrates are found in many
prescription medicines that are used to treat angina (chest pain due to
heart disease) such as: nitroglycerin (sprays, ointments, skin patches or
pastes, and tablets that are swallowed or dissolved in the mouth),
isosorbide mononitrate and isosorbide dinitrate (tablets that are
swallowed, chewed, or dissolved in the mouth). Nitrates are also found in
recreational drugs such as amyl nitrate or nitrite ("poppers"). If you are
not sure if any of your medicines contain nitrates, or if you do not
understand what nitrates are, ask your doctor or
pharmacist.
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