Viagra is an oral medication used used to treat erectile dysfunction. It is also used to treat pulmonary arterial hypertension. This medication is used for men only and Its use for sexual dysfunction in women is not clear. It can also go by the name Sildenafil. Viagra is a Category B medication, and there has been no proven risk for humans to take it.
You should always check with your doctor before starting this medication as it should not be used in people who have heart problems or high blood pressure. It can cause complications if you have some of these problems. You should be monitored by your doctor when you first begin to use it to make sure your vitals stay at a normal rate. Some side affects of this medication are flush skin, headaches, or heart burn. If you experience any of these symptoms please check with your doctor to see if something can be done to help. It can also caused prolonged erections while taking this medication which can lead to damage to your penis or sudden loss of your hearing. If this happens you should contact your doctor very quickly. If you take nitroglycerin you should not take this medication either as it could drop your blood pressure rapidly. This medication works by regulating the blood flow to your penis. It became available in the year 1998 and since then it has become a common treatment for this. Pfizer submitted an additional registration for sildenafil to the Australian Food and Drug Administration , and sildenafil was approved for this indication in June 2005.
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People on antidepressants may experience sexual dysfunction, either as a result of their illness or as a result of their treatment. A 2003 study concluded sildenafil improved sexual function in men in this situation. Following up reports from 1999, the same researchers concluded sildenafil improved sexual function in female patients on antidepressants, as well. Sildenafil may be useful for the prevention and treatment of high-altitude pulmonary edema associated with altitude sickness such as that suffered by mountain climbers.
Viagra common side effects
In clinical trials, the most common adverse effects of sildenafil use included headache, flushing, dyspepsia, nasal congestion, and impaired vision, including photophobia and blurred vision. Some sildenafil users have complained of seeing everything tinted blue (cyanopsia). Some complained of blurriness and loss of peripheral vision. In July 2005, the FDA found that sildenafil could lead to vision impairment in rare cases. Care should be exercised by patients who are also taking protease inhibitors for the treatment of HIV. Protease inhibitors inhibit the metabolism of sildenafil, effectively multiplying the plasma levels of sildenafil, increasing the incidence and severity of side effects. Patients using protease inhibitors are recommended to limit their use of sildenafil to no more than one 25-mg dose every 48 hours.
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