What does viagra do




















Sign up for Viagra price alerts and find out when the price changes! Get price alerts. The amount of time that Viagra will last depends on many factors. Dosage, age, and overall health are just some of the factors that can impact how well Viagra works and lasts for someone.

The average dose of Viagra is mg, taken 30 to 60 minutes, or up to four hours before sexual activity. For adults over the age of 65, the recommended dose is 25 mg. Many older adults have slower metabolisms, which means that a lower dose may last longer for them in comparison to a younger person taking a small dose.

Take Viagra before sexual activity, as it takes time for Viagra to absorb into the bloodstream. However, some men—depending on their metabolism—may experience multiple erections while Viagra is in their system. Once it starts working, Viagra typically lasts for up to four or five hours. If you do experience an erection that lasts longer than this priapism or is painful, it may be time to seek medical advice. Recovery time called the refractory period varies for each individual. Consuming alcohol while taking Viagra can make the medication less effective by decreasing blood flow to the penis.

For people with certain medical conditions, Viagra might not last as long. Feelings of anxiety, depression, or nervousness often cause Viagra not to last as long or be as effective. Having a heart problem, heart disease, diabetes, or other nervous system problems can also cause Viagra not to last as long.

Certain medications may interact negatively with Viagra and interfere with its effectiveness. Drugs that lower blood pressure can interact with Viagra to cause dangerously low blood pressure. Antifungal and antiviral medications may increase the amount of Viagra in the bloodstream, which can lead to toxicity.

Talking with your healthcare provider is the best way to determine if Viagra will cause any drug interactions. SingleCare prescription discounts. Knowing when to speak to a doctor about getting Viagra can be challenging. Some men might not be able to get or maintain an erection for psychological reasons.

Talk to a counselor individually or see a therapist with your sexual partner to resolve underlying psychological issues. The best way to know if you will benefit from taking an erectile dysfunction medication like Viagra is to consult your healthcare provider. Generic forms of both drugs are available. Brand-name medications usually cost more than generics. According to estimates on GoodRx.

Here we look at how Viagra and sildenafil are alike and different. Viagra, which contains the active drug sildenafil, is a brand-name drug. But sildenafil is also available as a generic medication. A generic medication is an exact copy of the active drug in a brand-name medication.

Viagra is approved to treat erectile dysfunction ED in males ages 18 years and older. It comes as tablets that are taken by mouth. Viagra is available in the following strengths:. Like Viagra, certain forms of sildenafil are approved to treat ED in males ages 18 years and older.

For example, sildenafil mg, mg, and mg tablets are approved for this use. In addition, sildenafil also comes as mg tablets. These forms of sildenafil are generic versions of a brand-name drug called Revatio. Like Revatio, these forms of sildenafil are used to treat a condition called pulmonary arterial hypertension PAH.

With PAH, you have high blood pressure in the artery between your heart and lungs. It also means that sildenafil and Viagra can cause the same side effects. Viagra is a brand-name drug, while sildenafil is a generic form of Viagra. Like Cialis described above , Levitra is also prescribed for similar uses as Viagra. Here we look at how Viagra and Levitra are alike and different. Viagra contains the drug sildenafil , while Levitra contains the drug vardenafil.

Viagra and Levitra are both approved to treat erectile dysfunction ED in males ages 18 years and older. The medications can help you get an erection for up to 4 hours after you take a dose. But neither drug should be taken more than once a day. Viagra and Levitra both contain the same type of drug. These lists contain up to 10 of the most common mild side effects that can occur with Viagra, with Levitra, or with both drugs when taken individually.

The following list contains examples of serious side effects that can occur with either Viagra or Levitra. The use of Viagra and Levitra in treating ED has been directly compared in several clinical studies and compared in several reviews of studies.

Viagra and Levitra are both brand-name drugs. Below, we answer questions related to how long Viagra works inside your body. Viagra typically starts to work between 30 and 60 minutes after you take a dose of the drug. Viagra keeps working in your body for up to 5 hours. In fact, rarely, Viagra can cause priapism. With this condition, you have a long-lasting and sometimes painful erection.

Viagra may work faster if you take it on an empty stomach. However, if Viagra is taken with food, especially with a high-fat meal, it will take longer to start working. And in this case, it could even be less effective for you.

But it can actually take about 24 hours for Viagra to be completely removed from your body. Viagra is approved to treat erectile dysfunction ED in men. These messages cause certain chemicals to be released in your penis. One of these chemicals, called cyclic GMP, relaxes and widens certain blood vessels in your penis. These actions allow blood to flow into the corpus cavernosum, which causes your penis to get hard and become erect. The condition can result from problems with messages being sent from your brain.

ED can also result from problems with blood flow into your penis. Viagra works to treat ED by helping you have and maintain an erection. Viagra is a type of drug called a phosphodiesterase type 5 PDE5 inhibitor. It works by inhibiting blocking the action of an enzyme called PDE5. An enzyme is a protein that helps chemical reactions to happen inside your body. This action improves blood flow to your penis and helps you to have and keep an erection. However, some men find that if Viagra works to treat their erectile problem, it also increases their sexual confidence.

And this may lead to an increased sex drive. They may recommend that you try a different medication for your ED. Arousal may involve having sexual thoughts, looking at sexual images, masturbating, or engaging in foreplay. But if you feel anxious, nervous, depressed, or stressed, your body may not respond well to sexual stimulation. If this is the case, try to relax, make yourself comfortable, and take your time. This is because consuming large amounts of alcohol can make it more difficult for you to get an erection.

Instead, it belongs to a class of drugs called phosphodiesterase type 5 PDE5 inhibitors. A class of drugs describes a group of medications that work in a similar way.

Viagra works by inhibiting blocking the action of a certain enzyme in your body. If you have any bleeding problems, talk with your doctor about whether Viagra is safe for you.

Here are answers to some frequently asked questions about Viagra. However, the drug can help you to get and keep an erection. And studies have shown that Viagra can increase satisfaction from sex. This may temporarily increase the size of your penis, until the erection goes away. The drug does have a few serious side effects, but these rarely occur.

However, Viagra may not be safe to use if you have certain medical conditions, including heart disease. If this is the case, talk with your doctor about whether Viagra is safe for you. Just be aware that taking the drug could cause your blood pressure to be lowered. These side effects can include dizziness, lightheadedness, or even fainting.

But for other people, it may take a few times of trying the drug to get the desired effect. They may increase your dose of the drug or recommend that you try a different medication. It might. This drug is only approved to be taken by mouth. In comparison, in studies of men with ED due to:. Yes, it can be used for this purpose. Yes, it could. In several studies , Viagra has been looked at as a possible treatment for premature ejaculation PE.

With PE, you ejaculate before you want to. Some studies found that Viagra can help men with PE to delay ejaculation longer than they could without treatment.

More research is needed to know for sure whether or not Viagra is effective for treating PE. However, Viagra is recommended in similar guidelines from the European Association of Urology. Viagra is approved for use in males ages 18 years and older. This is because certain side effects of Viagra may be worsened by alcohol.

This includes such side effects as headaches, flushing, and dizziness. Viagra can interact with several other medications. Different interactions can cause different effects. For instance, some interactions can interfere with how well a drug works.

Other interactions can increase side effects or make them more severe. Below are lists of medications that can interact with Viagra. Before taking Viagra, talk with your doctor and pharmacist. Tell them about all prescription, over-the-counter, and other drugs you take. Also tell them about any vitamins, herbs, and supplements you use. Sharing this information can help you avoid potential interactions.

If you have questions about drug interactions that may affect you, ask your doctor or pharmacist. This includes prescription medications, such as:. Taking Viagra with other ED medications increases your risk of certain side effects, such as low blood pressure and priapism.

This includes certain prescription drugs, such as nitroglycerin , used to treat angina a type of chest pain. It also includes certain illicit drugs called poppers , such as amyl nitrate.

Taking Viagra with nitrates can cause a dangerous drop in your blood pressure that can lead to heart attack or stroke.

Taking Viagra with these medications can cause your blood pressure to drop too low. Viagra can sometimes cause low blood pressure. Taking Viagra with drugs used to treat high blood pressure can cause your blood pressure to drop even lower.

It could even make you faint. If you take one of the drugs listed above, tell your doctor if you feel dizzy or lightheaded, or faint after taking Viagra. Poppers contain nitrate drugs such as amyl nitrate , alkyl nitrate, and butyl nitrate. Taking Viagra with poppers can cause a dangerous drop in your blood pressure that can lead to heart attack or stroke.

These drugs are called alpha-blockers. Taking Viagra with alpha-blockers can cause your blood pressure to drop even lower. This could make you feel dizzy or lightheaded, or even cause you to faint. And if you take one of the drugs listed above, tell your doctor if you feel very dizzy, lightheaded, or faint after taking Viagra. Adderall , which contains amphetamine salts, is approved to treat attention deficit hyperactivity disorder ADHD.

Adderall has stimulant effects in your body, and it could cause serious heart-related side effects. Viagra, on the other hand, may cause low blood pressure. Xanax , which is a benzodiazepine, contains the active drug alprazolam. Xanax can sometimes cause low blood pressure , dizziness, and fainting. Viagra may also lower your blood pressure. This is particularly true for selective serotonin reuptake inhibitors SSRIs , such as sertraline Zoloft.

If you have questions about whether you can take Viagra with an antidepressant, talk with your doctor. Taking Viagra with certain antimicrobials drugs used to treat infection can slow the breakdown of Viagra in your body. This can cause Viagra to build up inside your body, which may increase your risk of side effects from the drug. If you take one of the drugs listed above, your doctor will recommend you take a starting dose of 25 mg for Viagra. This is lower than the typical starting dose of Viagra.

However, you should still check with your doctor or pharmacist before using any of these products while taking Viagra. Liquid sildenafil 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.

Liquid sildenafil will usually be made up for you by your pharmacist. The medicine will come with a plastic syringe or spoon to help you take the right amount. What if I forget to take it? Never take 2 doses at the same time. Never take an extra dose to make up for a forgotten one. If you often forget doses, it may help to set an alarm to remind you. What if I take too much? Taking too much sildenafil by accident can cause unpleasant side effects, such as: headaches dizziness indigestion blocked nose altered vision Talk to your doctor if you have taken too much sildenafil and you're worried about these side effects.

Common side effects Common side effects happen in more than 1 in people. 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: headaches feeling sick hot flushes, including facial flushing indigestion a colour tinge to your vision or blurred vision stuffy nose dizziness Serious side effects Serious side effects are rare and happen in less than 1 in 1, people.

Stop taking sildenafil and call a doctor straight away if you get : chest pains - if this happens during or after sex, get into a semi-sitting position and try to relax; do not use nitrates to treat your chest pain prolonged and sometimes painful erections - if you have an erection that lasts for more than 4 hours, contact a doctor immediately a sudden decrease or loss of vision a serious skin reaction - symptoms may include fever, severe peeling and swelling of the skin, blistering of the mouth, genitals and around the eyes seizures Serious allergic reaction In rare cases, it's possible to have a serious allergic reaction anaphylaxis to sildenafil.

These are not all the side effects of sildenafil. For a full list, see the leaflet inside your medicines packet. Information: You can report any suspected side effect to the UK safety scheme. Sildenafil is not recommended in pregnancy and while breastfeeding. Non-urgent advice: Tell your doctor if you're:. Some medicines do not mix well with sildenafil. Tell your doctor if you're taking these medicines before you start sildenafil : nitrates for chest pain riociguat for pulmonary hypertension recreational drugs called poppers, such as amyl nitrite Mixing sildenafil with herbal remedies and supplements Some complementary therapies may have ingredients that could interfere with sildenafil and cause side effects.

Important Tell your doctor or pharmacist if you're taking any other medicines, including herbal remedies, vitamins or supplements. How does sildenafil work? Sildenafil belongs to a group of medicines called phosphodiesterase 5 PDE5 inhibitors. This increases the blood supply to the lungs and reduces the workload of the heart. How well does it work for erection problems? Sildenafil works well for erectile dysfunction. In general, at least two-thirds of men say they have harder erections after taking it.

If sildenafil does not work for you, it may be because: you have not waited long enough after taking it before trying to have sex you have waited too long after taking it to have sex the dose is not high enough you're not sexually aroused enough. How long does it take to work? Sildenafil usually starts to work within 30 to 60 minutes. It's triggered by sexual stimulation, so you need to be aroused for it to work. How long will it work for? You should be able to get an erection at any time between 1 and 4 hours after taking sildenafil.

Your erection should go away after you have had sex. Can I take it as often as I want? If you're taking sildenafil for erectile dysfunction, do not take it more than once a day. Is it safe to take it for a long time? Sildenafil is safe to take for a long time. There do not seem to be any lasting harmful effects from taking it for many months and years. Are there any other medicines that can improve erections? If sildenafil does not work, there are other tablets you could try that work in a similar way, such as: tadalafil Cialis - can be taken up to 36 hours before sex avanafil Spedra - can be taken up to around 4 hours before sex vardenafil Levitra - can be taken up to around 4 hours before sex You could also try a medicine called alprostadil.

Alprostadil comes as: an injection directly into your penis a small pellet placed inside your urethra the tube that carries urine from your bladder to the tip of your 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.

Are there other treatments for erectile dysfunction? Other treatments for erectile dysfunction include: a vacuum pump psychological treatments penile implants pelvic floor muscle exercises Some complementary therapies, such as acupuncture, have claimed to treat erectile dysfunction. Is there a herbal Viagra?

There are lots of treatments that claim to be a "herbal Viagra". In fact, there's no such thing. A herbal Viagra has never been approved as a treatment for erectile dysfunction. Plus, these treatments may be fake or unsafe.

Can women use it?



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