How fast viagra work

Viagra is a type of erectile dysfunction drug called a phosphodiesterase 5 inhibitor. PDE5 inhibitors keep a particular enzyme called phosphodiesterase type-5 PDE5 from acting too quickly. Viagra will not be as effective for people with certain conditions.

You may not get the full benefits of Viagra if you are sick, fatigued, or intoxicated. Alcohol can worsen the side effects of viagra and potentially make erectile dysfunction worse. You should take Viagra on an empty stomach about one hour before sex. It starts working within 30 to 60 minutes, but an erection requires sexual stimulation. In most patients, the effects of Viagra will last for up to two hours. A duration of two hours or less indicates that an appropriate dose was taken.

If the duration is greater than four hours, medical attention should be sought out immediately to avoid damaging effects on the tissues. 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. Some experts recommend taking Viagra on an empty stomach and certainly not after eating a high-fat meal.

However, other researchers have not found a connection between taking Viagra with food and lower efficacy of the drug. Viagra may not work the first time for everyone.

Once it does start to work, you can expect your erection to last anywhere from two to three hours. Viagra pills are labeled with how much sildenafil citrate they contain: 25 mg, 50 mg, or mg. A doctor may prescribe someone different dosages of Viagra based on whether they will be taking it as needed or daily.

The standard dose of Viagra for ED is 50 mg taken as needed, about one hour before sexual activity. According to manufacturer instructions, patients should take Viagra only once per day on an as-needed basis unless otherwise advised by a doctor. For example, men older than 65 or those with hepatic and renal impairment typically take a starting dose of 25 mg per day. The maximum recommended dose of Viagra is mg, and the maximum frequency recommended for taking it is once per day.

This can cause side effects that could be life-threatening. Just like with any medication, taking Viagra comes with the potential for experiencing side effects. These are the most common side effects of Viagra:. A single dose of Viagra will leave your system within eight hours, and almost all of it will be gone after 24 hours. Emmel says. This may be a sign of a serious eye problem called non-arteritic anterior ischemic optic neuropathy NAION. People who are taking Viagra and start to have vision changes should seek medical advice as soon as possible to avoid potential eye damage or loss of vision.

Heart attack and stroke: The rarest side effects of Viagra are heart attacks and strokes. If it still does not work, talk with your doctor about adjusting your dose. There are other ED treatments available if needed, including lifestyle changes that may help.

Ideally, take it an hour before sexual activity. But it can be taken 30 minutes to 4 hours before sexual activity, too. How you take Viagra matters when it comes to getting the most, ahem , bang for your buck. Viagra can be taken with or without food, but if you like to fuel up before getting busy, try to keep your meal choice light.

Already ate a large meal? You might want to wait a couple of hours to allow enough time for digestion before taking it. Do not pop the pill and expect to get down to business right away. Plan on giving yourself some time for it to work. If you like a glass of wine or another alcoholic bev to unwind before sexy time, you should be fine. Moderate to heavy drinking can make it — er — harder for you to get an erection. Also, Viagra can lower blood pressure. Combining it with alcohol can increase this effect.

If your blood pressure drops, symptoms like dizziness, lightheadedness, and headache could also hinder your hard-on and mood. Need a little help? It depends on individual factors. Typically, Viagra can last up to 4 hours , but many users say it begins to wear off within 2 or 3 hours. Some have reported it lasting up to 5 hours. Like Viagra, most ED drugs can be taken 30 to 60 minutes before sex.

The exception is Stendra avanfil , which is the fastest-acting ED medication available.