The primary indication of sildenafil is treatment of erectile dysfunction (inability to sustain a satisfactory erection to complete intercourse). Its use is now one of the standard treatments for erectile dysfunction, including for men with diabetes mellitus. Rare but serious adverse effects found through postmarketing surveillance include prolonged erections, severe low blood pressure, myocardial infarction (heart attack), ventricular arrhythmias, stroke, increased intraocular pressure, and sudden hearing loss. Care should be exercised by people who are also taking protease inhibitors for the treatment of HIV infection. Protease inhibitors inhibit the metabolism of sildenafil, effectively multiplying the plasma levels of sildenafil, increasing the incidence and severity of side effects. Those using protease inhibitors are recommended to limit their use of sildenafil to no more than one 25 mg dose every 48 hours. blocker (typically prescribed for hypertension or for urologic conditions, such as benign prostatic hypertrophy) at the same time may lead to low blood pressure, but this effect does not occur if they are taken at least 4 hours apart. Sildenafil is a medicine used to treat erectile dysfunction. It increases blood flow to the penis to help men get an erection. At least two-thirds of men have improved erections after taking it. Sildenafil is also sometimes used to treat pulmonary hypertension (high blood pressure in the blood vessels that supply the lungs). This medicine is available on prescription and can also be bought from most pharmacies. It comes as tablets that you swallow, chewable tablets, and as a liquid that you drink. Sildenafil for erectile dysfunction (Viagra) can be taken by men aged 18 and over. Sildenafil for pulmonary hypertension (Revatio) can be taken by adults and children aged 1 and over. Do not take sildenafil if you: You can get sildenafil on the NHS if you have erectile dysfunction or pulmonary hypertension. Levitra vs viagra for hardness Metoprolol reviews Buy mifepristone and cytotec online OBJECTIVES To evaluate the long-term effect and safety of sildenafil citrate for. of 12 had discontinued because of the return of natural erections, 5 because of. As a result, many men have been searching for natural alternatives. Common side effects of Viagra sildenafil citrate include headaches, digestive problems. So, your search for the best and healthy ED drugs led you to some online pharmacies and retailers that claim to sell natural sildenafil citrate. This is the. When you think of erectile dysfunction (ED), you probably think of Viagra. Continue reading to learn about other ED drugs, as well as some alternative methods of treating ED. That’s because Viagra was the first oral pill to treat ED. Although Viagra is considered to be the most common medication for ED, there are quite a few on the market. Viagra can be very effective in treating ED, but it’s not right for everybody. They all work by improving blood flow to the penis so that you can get and maintain an erection long enough to have sex. Because of each medication’s unique chemical makeup, you may react differently to each of them. It may take a little trial and error to determine which one works best for you. Taking oral medications generally isn’t enough to provide an erection. However, this drug is only effective for short while, and after it wears off, the underlying issues causing the problem still remain, demanding a dose every time to achieve results. This is dangerous, as Viagra can cause serious side effects, especially if used long term. As a result, many men have been searching for natural alternatives. Common side effects of Viagra (sildenafil citrate) include headaches, digestive problems, blurred vision, runny nose, and urinary tract infections. One publicized danger of Viagra is the risk of long erections – sometimes lasting for over 4 hours – which require a trip to the emergency room. Risks of long-term use, according to the Ottawa Health Research Institute, include headaches, flushing, vision problems and difficulty breathing. Individuals with cardiac issues, hypertension, eye disorders or a history of strokes are especially at risk while taking Viagra, and some instances of heart attack and death have been reported. 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PMID 12955149. ^ Jump up to Webb, D. J.; Freestone, S.; Allen, M. J.; Muirhead, G. J. 4. Sep 21, 2018. 2018 marks the 20th Anniversary of the launch of Viagra Sildenafil for the treatment of erectile dysfunction in men. IJIR Your Sexual Medicine.