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Viagra Original Purpose

viagra original purpose

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Sign up for a free Medical News Today account to customize your medical and health news experiences. It works by relaxing the muscles in the walls of blood vessels in certain areas of the body. In most cases, Viagra works well and has changed people's lives for the better. The word Viagra is the brand name for sildenafil citrate and is used to treat erectile dysfunction and pulmonary arterial hypertension. Originally developed by scientists in the United Kingdom, it was brought onto the market by Pfizer Inc.

Viagra is also sold under brand name Revatio. In this article, we look briefly at the effects of Viagra, why it is used, the side effects, and history. Viagra is generally safe to use in moderation. However, taking it may cause a range of adverse effects.

Less commonly, some users have experienced cyanopsia, where everything appears to have a tinted blue tinge. In very rare cases, Viagra use can lead to nonarteritic anterior ischemic optic neuropathy , or damage to the optic nerve. Since , Viagra's labeling in the U. Viagra can decrease blood supply to the optic nerve, causing sudden vision loss. This very rare adverse event occurs mainly in people with heart disease , hypertension, diabetes , high cholesterol , or pre-existing eye problems.

The link between vision loss and Viagra is as yet unknown. People with HIV who take protease inhibitors should discuss using Viagra with their doctors. Protease inhibitors increase the risk and severity of side effects. These individuals should have no more than 25 milligrams mg of Viagra at a time, and not more often than every 48 hours.

Individuals taking alpha-blockers should make sure they take Viagra at least 4 hours before or after taking alpha-blockers. This can help prevent dangerously low blood pressure.

Some athletes take Revatio to increase their exercise capacity, but there is little evidence to support this use. Viagra can help men who cannot achieve or sustain an erection due to erectile dysfunction. It improves the erectile response when a man is already sexually stimulated, but it does not provide sexual stimulation. If there is no sexual stimulation, viagra will not work. When sexual stimulation occurs, nitric oxide is released by the nervous system in the erectile tissue of the penis.

Nitric oxide stimulates an enzyme that produces messenger cyclic guanosine monophosphate cGMP. The dosage will be different if the drug is taken for erectile dysfunction or for pulmonary arterial hypertension. For erectile dysfunction, Viagra comes in blue, diamond-shaped pills, in doses of 25, 50, or mg.

The individual takes a maximum of one pill in a hour period, 30 minutes to 1 hour before sexual intercourse.

For pulmonary arterial hypertension, Viagra comes in white, round, film-coated tablets. People take one mg Revatio tablet three times a day. A Viagra overdose can be serious. If you believe you have had more than the standard dosage, call a doctor or local Poison Control Center. Initially, Viagra was designed by Pfizer scientists working in the U. They were, in fact, working on a drug for hypertension, or high blood pressure , and angina pectoris, a symptom of ischemic heart disease.

During the phase 1 trials, it was noted that the drug did very little to prevent angina but did induce marked penile erections. Hitting the market in , Viagra was the first oral treatment approved to treat erectile dysfunction in the U.

Viagra's meteoric rise to fame has seen it enter usage as an illicit drug. But, Viagra use in individuals without erectile dysfunction does not seem to have any effect. Although, researchers have noted that there is a significant placebo effect. On a similar note, there is no proven benefit for women taking the drug. Article last updated by Yvette Brazier on Mon 19 November All references are available in the References tab.

Sildenafil accelerates reentrainment of circadian rhythms after advancing light schedules. A non-fatal self-poisoning attempt with sildenafil.

Worldwide revenue of Pfizer's Viagra from to in million U. MNT is the registered trade mark of Healthline Media. Any medical information published on this website is not intended as a substitute for informed medical advice and you should not take any action before consulting with a healthcare professional. Privacy Terms Ad policy Careers.

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Reviewed by Alan Carter, PharmD. Table of contents Is it safe? Viagra was initially designed to help lower blood pressure but is now typically used to treat erectile dysfunction.

Viagra may reduce blood clots after stent surgery. New research shows that a popular drug for erectile dysfunction may reduce the risk of blood clotting after stent implantation.

What's to know about erectile dysfunction? A viagra overdose can be serious, although death is rare. This content requires JavaScript to be enabled. Please use one of the following formats to cite this article in your essay, paper or report: If no author information is provided, the source is cited instead.

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Bacteria living on insects could provide new antibiotics. Insects harbor bacteria that protect them from infection. Tapping this source could yield new antibiotics to combat the growing threat of drug resistance. Can we halt cellular aging? New drug combo shows promise. In the first clinical trial in humans, researchers test a promising drug combination that could help fight the effects of cellular aging.

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Transcendental meditation can help treat PTSD. New research suggests that practicing transcendental meditation over approximately 3 months can effectively fight symptoms of PTSD and improve depression.

Can erectile dysfunction be reversed? Does drinking water improve erectile dysfunction? Can Viagra permanently damage vision? Diabetes and erectile dysfunction may be genetically linked.

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Viagra original purpose clinical | Ahmed Khaled BBC NEWS | Health | Original heart hope of Viagra realised

Viagra original purpose

Viagra is best known as the drug of choice for men with erectile dysfunction, but when the blue pill was created, it wasn’t intended to. Viagra is best known as the drug of choice for men with erectile dysfunction, but when the blue pill was created, it wasn’t intended to. Sildenafil, sold as the brand name Viagra among others, is a medication used to treat erectile The primary indication of sildenafil is treatment of erectile dysfunction (inability to sustain a satisfactory erection to complete intercourse). In clinical trials, the most common adverse effects of sildenafil use included headache. Viagra treats erectile dysfunction and pulmonary arterial hypertension. For sexual purposes, it helps someone with erectile dysfunction achieve.

Viagra original purpose

Journal of Pharmaceutical and Biomedical Analysis. This page was printed from: They were, in fact, working on a drug for hypertension, or high blood pressureand angina pectoris, viagra original purpose, a symptom of cialis prescription assistance heart disease. Originally developed by scientists in the United Kingdom, it was brought onto the market by Pfizer Inc. Sildenafil and other PDE5 inhibitors are used off-label to alleviate vasospasm and treat severe ischemia and ulcers in fingers and toes for people with secondary Raynaud's phenomenon ; [12] [13] these drugs have moderate efficacy for reducing the frequency and duration of vasospastic episodes.

Viagra (sildenafil) relaxes muscles found in the walls of blood vessels and increases blood flow to particular areas of the body. Viagra is used to treat erectile dysfunction (impotence) in men. Another brand of sildenafil is Revatio, which is used to treat pulmonary arterial hypertension and improve exercise capacity in men and women. Sildenafil, sold as the brand name Viagra among others, is a medication used to treat erectile dysfunction and pulmonary arterial hypertension. Its effectiveness for treating sexual dysfunction in women has not been demonstrated. Common side effects include headaches and heartburn, as well as flushed skin. Viagra Original Purpose - Good price for Sildenafil medications: Get gifts - free samples pills Levitra or generic Cialis. Full anonymity and secure ordering.

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