Generic Name: sildenafil (oral) (sil DEN a how to use viagra fil brand Names: Revatio, Viagra, medically reviewed on October 12, 2017. Viagra (sildenafil) relaxes muscles found in the walls of viagra ad blood vessels and increases blood flow to how to use viagra 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 taking viagra and women. Do not take Viagra while also taking Revatio, unless your viagra at walmart doctor tells you. Important information, some natural viagra medicines can cause unwanted or dangerous effects when used with Viagra. Tell your doctor about all your current medicines, how to use viagra especially riociguat (Adempas). Do not take Viagra if you are viagra military also using a nitrate drug for chest pain or heart problems, including nitroglycerin, isosorbide dinitrate, isosorbide mononitrate, and some recreational drugs such as "poppers". Taking sildenafil with a nitrate medicine can cause a sudden and serious decrease in blood pressure. Contact your doctor or seek emergency medical attention if your erection is painful or lasts longer than 4 hours. A prolonged erection (priapism) can damage the penis. Stop using Viagra and get emergency medical help if you have sudden vision loss. Before taking this medicine, you should not use Viagra if you are allergic to sildenafil, or: if you take other medicines to treat pulmonary arterial hypertension, such as riociguat (Adempas). Do not take Viagra if you are also using a nitrate drug for chest pain or heart problems. This includes nitroglycerin, isosorbide dinitrate, and isosorbide mononitrate. Nitrates are also found in some recreational drugs such as amyl nitrate or nitrite poppers. Taking Viagra with a nitrate medicine can cause a sudden and serious decrease in blood pressure. To make sure Viagra is safe for you, tell your doctor if you have ever had: heart disease or heart rhythm problems, coronary artery disease; a heart attack, stroke, or congestive heart failure; fildena vs viagra high or low blood pressure; liver or kidney disease; a blood cell. Viagra can decrease blood flow to the optic nerve of the eye, causing sudden vision loss. This has occurred in a small number of people taking sildenafil, most of whom also had heart disease, diabetes, high blood pressure, high cholesterol, or certain pre-existing eye problems, and in those who smoked or were over 50 years old. It is not clear whether sildenafil is the actual cause of vision loss. Viagra is not expected to harm an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant. It is not known whether sildenafil passes into breast milk how to use viagra or if it could harm a nursing baby. Tell your doctor if you are breast-feeding a baby. Do not give Viagra to anyone under 18 years old without medical advice. How should I take Viagra? Take Viagra exactly as it was prescribed for you.

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When is viagra going generic

Most experts will tell you that every man will deal with some level of when is viagra going generic erectile dysfunction (ED) at some point in his life. Many men, especially as when is viagra going generic they get older, will have it seriously enough that they'll consider seeking some help. The when is viagra going generic upside is that the vast majority of ED cases can be treated with great effectiveness. For many, it's a simple as taking a pill. Here's what you need to know how long does it take for viagra to work before you. How to Talk to Your Doctor. Given that ED is such a common when is viagra going generic problem, don't be too daunted about talking to your doctor about. However, don't expect them to throw you a bunch of free samples right away. First, they are going to want to make sure your erectile issues require medication. They will likely ask about your diet, weight, stress-levels, and sleep. "Making sure the dysfunction is from a medical problem and not necessarily related to anxiety or a psychogenic cause is also important to tease out before to running to give them medicine says. Benjamin Breyer, Chief of Urology at San Francisco General Hospital. Medical history can also be an important factor, especially for men who have had surgery or radiation that could affect functioning. Age and baseline erectile functioning are also important determinants of how various ED treatments will work. Related: 12 Things Every Man Should Know About His Penis. How the Pills Work, you probably already know the names of the most popular pills Viagra, Levitra, Cialis but how do they work? First of all, all increase the effects of nitrous oxide in the body, which relaxes muscles around your penis and allows for increased blood flow. Although they are referred to interchangeably in the common lexicon, there are some differences between these pills. The biggest is how long they last. Cialis is the standout here, as a man can take it well before he thinks he will need it and, if he takes it daily, there is no time delay in terms of when it will work. Viagra and Levitra, on the other hand, have to be taken at least 30 to 60 minutes prior to sex and can last four to five hours. A new pill, Avanafil (Stendra has cut this time down to 15 to 30 minutes and lasts six to 12 hours. Cialis is also the only ED pill that is also FDA-approved to treat benign prostatic hyperplasia (BPH an enlarged prostate condition which can affect urination. So, some men may take Cialis for this reason as well. Overall, these pills are quite safe for most men. Common side effects that exist are pretty mild and Breyer says they often improve over time. "By and large, they are safe. There are common side effects, like headaches, dizziness, flushing, back pain, some guys get runny noses, feeling congested says Breyer. This is particularly good to know, considering men using these treatments will likely use them for the rest of their lives. Erectile dysfunction medications may be ineffective or dangerous for men who take nitrates or blood thinners, and those who have had heart problems, stroke, or issues with their blood pressure. Non-Oral Medications, oral medications work for most men with ED but some may require more potent options. The first of these is a suppository pellet, Alprostadil (Muse which is inserted directly into the urethra (the tube that carries urine and semen out of the penis). In order to use this, a man urinates to lubricate the urethra and then inserts the pellet. This a strong medication and the delivery is much more direct than in oral pills. It is still fairly safe. "Guys tend to tolerate it well, but some men will complain of penile pain or burning afterwards when they urinate says Breyer. Related: 37 Sex Stats You Need to Know. The other non-pill medication treatment for ED is direct injection. This entails using a needle to deliver medication usually a mix of two to three meds into the penis prior to sex.

Viagra interactions

For other uses, see. Sildenafil, sold as the brand name. Viagra among others, is a medication used to treat erectile dysfunction and pulmonary arterial hypertension. 3, its effectiveness for treating sexual dysfunction in women has not been demonstrated. 3, common side effects include headaches and heartburn, as well as flushed skin. Caution is advised in those who have cardiovascular disease. Rare but serious side effects include prolonged erections, which can lead to damage to the penis, and sudden-onset hearing loss. Sildenafil should not be taken by people who take nitrates such as nitroglycerin (glycerin trinitrate as this may result in a severe and potentially fatal drop in blood pressure. 3, sildenafil acts by inhibiting cGMP-specific phosphodiesterase type 5 (phosphodiesterase 5, PDE5 an enzyme that promotes degradation of viagra interactions cGMP, which regulates blood flow in the penis. Pfizer scientists, andrew Bell, David Brown, and Nicholas Terrett originally discovered sildenafil as a treatment for various cardiovascular disorders. 4 5, since becoming available in 1998, sildenafil has been a common treatment for erectile dysfunction; its primary competitors are tadalafil (trade name Cialis) and vardenafil (Levitra). Contents Medical uses 50mg tablets of sildenafil Sexual dysfunction 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. 6 Antidepressant-associated sexual dysfunction Tentative evidence suggests that sildenafil may help men who experience antidepressant -induced erectile dysfunction. 7 Pulmonary hypertension While sildenafil improves some markers of disease in people with pulmonary arterial hypertension, it does not appear to affect the risk of death viagra interactions or viagra interactions serious side effects as of 2014. 8 Raynaud's phenomenon 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 ; 9 10 these drugs have moderate efficacy for reducing the frequency and duration. 9 As of 2016, their role more generally in Raynaud's was not clear. 10 Adverse effects In clinical trials, the most common adverse effects of sildenafil use included headache, flushing, indigestion, nasal congestion, and impaired vision, including photophobia and blurred vision. 2 Some sildenafil users have complained of seeing everything tinted blue ( cyanopsia ). 11 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 12 and a number of studies have linked sildenafil use with non-arteritic anterior ischemic optic neuropathy. 13 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. 2 In October 2007, the FDA announced that the labeling for all PDE5 inhibitors, including sildenafil, required a more prominent warning of the potential risk of sudden hearing loss. 14 Interactions 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. 2 Other drugs that interfere with the metabolism of sildenafil include erythromycin and cimetidine, both of which can also lead to prolonged plasma half-life levels. The use of sildenafil and an 1 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. 15 Contraindications Contraindications include: 2 :11 Concomitant viagra interactions use of nitric oxide donors, organic nitrites and nitrates, 16 such as: Concomitant use of soluble guanylyl cyclase stimulators, such as riociguat Known hypersensitivity to sildenafil Sildenafil should not be used if sexual activity is inadvisable due. 18 Sildenafil's trade name, Viagra, is widely recognized in popular culture, and the drug's association with treating erectile dysfunction has led to its recreational use. 19 The reasons behind such use include the belief that the drug increases libido, improves sexual performance, 19 or permanently increases penis size. 20 Studies on the effects of viagra when used recreationally are limited, but suggest it has little effect when used by those not suffering from viagra interactions erectile dysfunction. In one study, a 25-mg dose was shown to cause no significant change in erectile quality, but did reduce the postejaculatory refractory time. 21 This study also noted a significant placebo effect in the control group. 21 Unprescribed recreational use of sildenafil and other PDE5 inhibitors is noted as particularly high among users of illegal drugs. 22 Sildenafil is sometimes used to counteract the effects of other substances, often illicit. 19 Some users mix it with methylenedioxymethamphetamine ( mdma, ecstasy other stimulants, or opiates in an attempt to compensate for the common side effect of erectile dysfunction, a combination known as " sextasy "rockin' and rollin or "trail mix".

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