Other Uses of Viagra

Viagra (Sildenafil citrate) is a drug developed by the pharmaceutical company Pfizer and offered for sale to those suffering from erectile dysfunction, also called impotence. Viagra was an instant success upon its release in 1999 and its climbing sales have forever changed the face of the treatment of erectile dysfunction.

Like most great inventions, Viagra was first discovered by accident. The world's most famous remedy for impotence started off life as a disappointing treatment for angina. The future of the drug (then known as UK-92480) was looking rather bleak until clinical trials turned up an unexpected side effect.

Doctor's began to notice that the trial patients were very reluctant to stop taking the drug because it had dramatically improved their sex lives. Viagra was remarketed and launched by Pfizer Pharmaceuticals in mid April 1998 as a treatment for erectile dysfunction.

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Researchers are constantly discovering more uses for the versatile pill. Conditions being assessed for treatment with Viagra include;

Jet lag: Researchers in Argentina found that animals injected with the drug adapted faster to light changes, suggesting that Viagra speeds up the time it takes the body clock to adapt to jet lag.

Stroke: Doctors believe that if given within three days of a stroke, the drug could help both men and women regain and improve movement, speech and thinking via its effect on the molecule cGMP, which is thought to create new cells in the brain.

Memory & Learning: A number of studies have suggested that taking Viagra can boost memory and learning skills. Just how it does so, however, it not clear. One theory is that it triggers increased blood flow and improved glucose processing in the brain; another is that levels of cGMP, which Viagra increases, have to be kept high for peak learning ability.

Heart Failure: Research in Italy suggested that Viagra improves the ability of patients with heart failure to exercise. The drug increased oxygen uptake, reduced pressure in the arteries, and improved the working of the lungs, said the Milan University researchers. Again, it's thought that the drugs does so by increasing levels of nitric oxide.

Wilting Flowers: When cut flowers are put in a weak solution of Viagra - one-fiftieth the amount taken by men for impotence - the flowers survive for two weeks instead of one. Scientists suspect the Viagra works through its effects on nitric oxide, which is also how the drug treats erectile dysfunction.

Pulmonary Arterial Hypertension: A Viagra-based drug, sildenafil, under the trade name Revatio, extends the lives of some sufferers by boosting blood flow to the lungs, reducing the workload on the heart. Crohn's Disease: Tests showed that the drug increased blood flow around the small intestine.

Alttitude Sickness: The use of Viagra may help the lungs continue to get oxygen while ascending to higher altitudes.

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