These medications differ from Viagra in the amount of time their effects last — CIalis , for example, can provide relief from erectile dysfunction for as long as 36 hours. You might also find it difficult to get and stay hard if you have:.
Hormonal issues. Hormonal issues, such as low testosterone, can affect your level of sexual interest. In some cases, this could worsen ED. If your erectile dysfunction is the result of low testosterone or other hormonal issues, Viagra may not be fully effective.
Our guide to testosterone and erections covers this issue in more detail and lists tactics that you can use to improve your sexual performance. High blood pressure. High blood pressure is one of the most common physical causes of erectile dysfunction.
If you have high blood pressure, it can become more difficult for the arteries that supply blood to the penis to properly dilate. Our guide to high blood pressure and erectile dysfunction explains this in more detail, with a list of approaches for lowering your blood pressure and improving your general health. Heart disease. Certain heart conditions can affect the blood supply to your penis and make getting an erection more difficult.
For example, atherosclerosis hardening of the arteries , can reduce blood flow and make medications like Viagra less effective. Psychological causes. Some cases of erectile dysfunction are caused by factors such as depression and anxiety. These factors are unrelated to PDE5, meaning that Viagra and other ED drugs might not be totally effective as treatment options. Our guide to the psychological causes of ED dives into this issue in more detail, with a full list of psychological factors that can contribute to and cause erectile dysfunction.
Porn consumption. Viagra works by blocking PDE As a result, the tissues in the penis stay relaxed and engorged with blood. Viagra starts working within 30 to 60 minutes, so you should take it at least that long before sexual activity.
For some men, Viagra can start working more quickly. Viagra is effective for about two to three hours. It leaves the body completely within six to eight hours. Your personal mileage may vary, depending on your age, overall health, other medications, and dosage taken.
Viagra and other ED medications can have side effects including headache, facial flushing, nasal congestion, stomach upset, back pain, and—rarely—temporary impaired color vision men with the eye condition retinitis pigmentosa should check with their healthcare providers before using those prescriptions. If an erection lasts more than a few hours, it can damage the penis. If you experience priapism or other serious side effects such as chest pain, severe headache, shortness of breath, fainting, or vision loss—basically anything majorly out of the ordinary—see a healthcare provider ASAP.
Some heart disease medications such as nitrates also increase nitric oxide in the body. Nitric oxide is a molecule that increases cGMP. As a result, taking ED meds with nitrates can be dangerous. Viagra slightly lowers blood pressure. So if you already have low blood pressure, talk with your doctor before taking Viagra. Taking Viagra along with amyl nitrate poppers can lead to a dangerous, even fatal, drop in blood pressure.
Most guys experience ED at some point in their lives. In fact, more than 30 million men in the U. Read everything you need to know about erectile dysfunction here. 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. It's not for women or children. Sildenafil for pulmonary hypertension Revatio can be taken by adults and children aged 1 and over. Branded versions of sildenafil such as Viagra are not available on the NHS, except in special circumstances. You can also get sildenafil on a private prescription from your doctor. This means you'll need to pay the full cost of the medicine. They'll ask you some questions about your general health to make sure sildenafil is safe for you to take.
You can also talk to them about side effects. If the pharmacist has any concerns about whether sildenafil is safe for you, they may advise you to see your doctor. Be very careful if you do this as many websites sell fake medicines. Online medicines are not always regulated and the ingredients in them can vary from one pack to another.
They can cause unpleasant side effects or may not be suitable for you. It's best to see your doctor before buying medicines online. They know your medical history and can discuss whether you might benefit from treatment. Sildenafil tablets for erectile dysfunction come in different strengths ranging from 25mg to mg. Take sildenafil up to 4 hours before you want to have sex. For sildenafil to work properly, you'll need to be sexually excited.
Sildenafil tablets for pulmonary hypertension come in 10mg and 20mg tablets. For erectile dysfunction, it's best to take sildenafil on an empty stomach. It may take longer to work if you take it with food. If you or your child are taking sildenafil as a liquid, 1ml is usually the same as taking a 10mg tablet, but it's important to always check the medicine label.
If you do not have a plastic syringe or spoon, ask your pharmacist for one. Do not use a kitchen teaspoon as it will not give the right amount. If you have pulmonary hypertension and you forget to take a dose of sildenafil, take it as soon as you remember and then continue as usual.
You could also ask your pharmacist for advice on other ways to help you remember to take your medicine. Talk to your doctor if you have taken too much sildenafil and you're worried about these side effects. Like all medicines, sildenafil can cause side effects in some people. Many people have no side effects or only minor ones. If you get these side effects, keep taking the medicine, but tell your doctor or pharmacist if these side effects bother you or do not go away:.
In rare cases, it's possible to have a serious allergic reaction anaphylaxis to sildenafil. You can report any suspected side effect to the UK safety scheme. Some complementary therapies may have ingredients that could interfere with sildenafil and cause side effects. Tell your doctor or pharmacist if you're taking any other medicines, including herbal remedies, vitamins or supplements.
It works if you have erection problems by temporarily increasing blood flow to the penis when you get sexually excited. It works in pulmonary hypertension by relaxing blood vessels in the chest. If you're taking sildenafil Revatio for pulmonary hypertension, do not take it more than 3 times a day. If sildenafil does not work, there are other tablets you could try that work in a similar way, such as:. You could also try a medicine called alprostadil.
This is a man-made hormone that helps to stimulate blood flow to the penis. If you cannot get erections because of a hormonal problem, your GP may refer you to an endocrinologist who specialises in the treatment of hormonal problems.
You may benefit from treatment using injections of man-made hormones to restore your hormone levels to normal. Some complementary therapies, such as acupuncture, have claimed to treat erectile dysfunction. But there's little evidence they work. There's no firm evidence to suggest that taking sildenafil will reduce fertility in either women or men. Sildenafil does not affect any type of contraception, including the contraceptive pill and emergency contraception.
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