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Viagra
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NO PRESCRIPTION
NEEDED
AUTHENTIC - NON-GENERIC DRUGS
WHAT YOU NEED TO KNOW
ABOUT
VIAGRA
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.
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.
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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