Why take 100mg viagra

Viagra normally starts working 30 to 60 minutes after you take it in oral tablet form. It may take up to 2 hours to work. Feeling relaxed and comfortable can also help Viagra take effect sooner.

On average, Viagra lasts between 2 and 3 hours before its effects start to diminish. Depending on how your body metabolizes it, you may be able to get an erection several times with Viagra in your system. No research has proven definitively that Viagra can increase how long you can have sex.

This is known as the refractory period. It may only last a few minutes, but it can last as long as a few hours or days. However, a study found that Viagra may decrease this recovery time.

Viagra usually leaves your system after 2 to 3 hours. Depending on your metabolism, Viagra can take 5 to 6 hours to fully leave your system. A higher dosage will take longer to leave your body.

A mg dose may wear off after a couple of hours, but a mg dose may take nearly four times as long to leave your system. Viagra often lasts for a few hours. Never take more than mg of Viagra in a hour period. Too much Viagra can cause severe headache, low blood pressure, and orthostasis drop in blood pressure when standing that can lead to fainting. Higher doses can also cause priapism , a painful erection that lasts longer than 4 hours.

Get emergency treatment right away if this happens. Talk with your doctor before you take Viagra or any related medication for ED. Some medications for heart conditions, such as nitroglycerin and other nitrates, can interact dangerously with Viagra and cause your blood pressure to drop too low. Viagra typically starts working within 30 to 60 minutes and lasts for about 2 to 3 hours after that. 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? Women can use sildenafil for pulmonary hypertension. There's no good evidence that sildenafil works for women with sexual problems. Will it affect my fertility? But speak to a pharmacist or your doctor before taking it if you're trying to get pregnant. Will it affect my contraception? Can I drink alcohol with it? A beer or a couple of glasses of wine are not likely to stop or delay sildenafil working. But drinking lots of alcohol can make it more difficult to get an erection.

To get the most benefit from sildenafil, do not drink heavily before taking it. Will recreational drugs affect it? Taking poppers amyl nitrite with sildenafil can have a dangerous effect on your heart. It can also be potentially dangerous to take sildenafil with: stimulants like MDMA ecstasy or cocaine hallucinogens like LSD novel psychoactive substances which used to be known as legal highs like mephedrone Sildenafil has not been properly tested with recreational drugs.

Talk to your doctor if you think you might use any recreational drugs with sildenafil. Is there any food or drink I need to avoid? You can eat and drink normally while taking sildenafil Viagra to get an erection.

Any lifestyle tips for erectile dysfunction? Erectile dysfunction can often be improved if you make changes to your lifestyle, such as: maintaining a healthy weight quitting smoking cutting back on the amount of alcohol you drink not taking recreational drugs exercising reducing stress. Related conditions Ejaculation problems Erectile dysfunction impotence Male sexual problems Priapism painful erections Pulmonary hypertension. The concentration of Viagra in the blood peaks around 30— minutes after taking the drug — usually around the 60 minute mark.

Viagra tablets typically come in 25, 50, or milligram mg doses. One older study shows that the risk of side effects does not increase when going from 50 to mg doses of Viagra. However, taking a higher dose will increase the effectiveness. The effects of Viagra vary for each individual. The effects of taking mg of Viagra can last for up to 4 hours after taking the drug. However, the strength of these effects is weaker at 4 hours than 2 hours after taking Viagra.

As the concentration of Viagra in the blood typically peaks 60 minutes after taking the drug, the effects are strongest around this time. Therefore, it is best to take Viagra around 1 hour before any sexual activity. It is possible to take Viagra with or without eating. However, eating a high fat meal before taking Viagra can delay absorption, meaning that the drug may take longer to work.

Viagra helps with erectile dysfunction by making it easier for a male to get and maintain an erection. Erectile dysfunction is a common condition that affects an estimated 30 million males in the United States. People with erectile dysfunction find it difficult reach or maintain an erection , even during sexual arousal. The condition can have a variety of causes, but it usually relates to poor blood flow to the penis.

During arousal, the arteries leading to the penis expand, allowing more blood to flow through it. The veins leading blood away from the penis also become narrower. The greater blood flow in and restricted blood flow out of the penis cause it to harden, leading to erection. In erectile dysfunction, however, blood flow to the penis can be too low and disrupt the ability to get or maintain an erection. Drugs such as Viagra relax smooth muscles and increase blood flow to the penis, making it easier to get or keep an erection.

Viagra can only work during sexual arousal. If a person is not in a state of arousal, Viagra will not be able to cause an erection.