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    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. nolvadex prescribing information This medication is used to treat erectile dysfunction (ED). One of the more common side effects is flushing, or redness. While it helps you temporarily maintain an erection so you can have sex, it does not cure ED. You still need mental or physical stimulation to get an erection.5 Common Causes of Impotence »Viagra is available only with a doctor’s prescription. This medication can cause a decrease in blood pressure, particularly one to two hours after taking it. Within the penis are two chambers called the corpora cavernosa. If you already have low blood pressure, discuss the pros and cons of Viagra with your doctor. Nitric oxide (NO) is released in the chambers during sexual stimulation. That increases levels of cyclic guanosine monophosphate (c GMP), which causes muscles to relax. For most people, sexual activity is good for cardiovascular health. However, if you have cardiovascular disease, you should ask your doctor if it’s safe for you to take Viagra. You should also avoid Viagra if your doctor advised you not to have sex. You should not take Viagra if you have had a stroke, heart attack, or have unstable angina.

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    Nov 19, 2018. 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. buy doxycycline asda See risks and benefits of VIAGRA® sildenafil citrate. VIAGRA works for men with erectile dysfunction ED by increasing blood flow to the penis so you can. Nov 26, 2018. 4 pack of 50mg sildenafil citrate film-coated tablets · Sildenafil. How well Viagra works, or how long it lasts for, depends on a number of things.

    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 common medication used to stimulate erections in men with erectile dysfunction (ED) and treat certain heart conditions. Many factors can influence how long Viagra takes to start working. In general, Viagra takes about 30 minutes to produce noticeable effects. But your diet, your overall health, the medications you’re taking, underlying conditions, and much more can all affect the amount of time Viagra takes to work in your body and how long it lasts. An erection happens when nerves in your penis are stimulated. Then, muscles around two cylinder-shaped chambers of spongy material along your penis, known as the corpus cavernosa, relax and allow blood to flow in, causing an erection. With ED, your nerves don’t communicate properly with your brain and blood doesn’t flow properly into the corpus cavernosa. Taking Viagra relaxes the walls of your blood vessels and lets blood flow more easily into the parts of your penis that cause an erection. You’ll still need to feel sexually aroused to get an erection.

    How sildenafil citrate works

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    Sildenafil is used to treat male sexual function problems impotence or erectile dysfunction-ED. In combination with sexual stimulation, sildenafil works by. zoloft shakes It helps to treat the symptoms of ED with its active ingredient, sildenafil citrate. In around 5% of men, Viagra works once or twice and then fails to case an. Feb 5, 2018. Sildenafil works by preventing the action of a chemical in your body, called phosphodiesterase type-5. This helps to widen relax blood vessels.

     
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