How Long Does Viagra Last?

Viagra can improve erections for up to 4 to 6 hours after it’s taken

• Levels of Viagra are highest in your body 30 to 120 minutes after you take a dose
• Viagra lasts a maximum of 12 hours, but it won’t last this long for everyone
• After 3 to 5 hours there is only half of maximum amount of Viagra left in your body

There’s no way to know for sure how long Viagra will last for you since it varies from person to person. The best thing to do is try Viagra for yourself and time it to see how long it lasts for you. Just remember you can only take it once every 24 hours.

How long do erections last on Viagra?

What you can do to make sure Viagra lasts as long as possible:

Eat a healthy, balanced diet:

• Include more whole grains, fruit and vegetables in your diet
• Reduce the amount of saturated fat you are eating
• Reduce the number of takeaways you eat
• Reduce your salt intake – 6g per day is the maximum
• Avoid grapefruit juice when you take Viagra as it can stop it from working

Cut down on your alcohol intake:

• You should avoid alcohol when you take Viagra as it can reduce how effective it is
• If you do drink, keep it below 2 units of alcohol

Quit smoking:

• Improves heart health, which means better blood flow to the penis

Exercise:

• Reduces stress levels, which can make you more relaxed during sex
• Improves heart health, which means better blood flow to the penis

What factors effect how long Viagra lasts?

Your age:

• If you’re over 65, your body gets less effective at removing Viagra from your body, meaning the effects can last longer

Alcohol:

• Alcohol decreases the blood flow to your penis making it harder to get an erection, which makes it harder for Viagra to work
• Alcohol also causes the nerves that control an erection to have a slower response, which can become permanent with chronic alcohol abuse.
• Drinking more than 2 units of alcohol while taking Viagra can increase the chance of negative side effects and make you unable to get and keep an erection

Diet:

• A large meal that is high in fat can affect the way Viagra works, making it less effective and take longer to work
• Taking the medication on an empty stomach means it will get to work much quicker

Other drugs:

• Some antibiotics can increase the amount of Viagra in your system which can make it last longer and increase the chance of side effects
• You should speak to your GP to check if you are at risk of any drug interactions

Dosage:

• Usually higher doses are more effective and tend to last longer
• Your GP will prescribe the right Viagra dosage to you

Health:

• Your overall health and fitness will affect Viagra’s working time
• Liver and kidney problems can cause Viagra to stay in your system for longer.
• Since Viagra can be unsafe for some people, make sure you tell your doctor about all health conditions you have when you order Viagra.

Can you take more Viagra to make it last longer?

No, you can only safely take Viagra once every 24 hours. Even though the effects of Viagra won’t last longer than 12 hours, it takes 24 hours to make sure it’s safely out of your system.

Taking more than one Viagra in the same 24 hour period could mean the amount of Viagra in your body builds up to unsafe levels. Having unsafe levels of Viagra in your body increases your risk of side effects, including those that are more serious.

You also can’t take Viagra with other erectile dysfunction tablets for the same reasons.

Higher doses of Viagra last slightly longer. There are 3 doses, 25mg, 50mg, and 100mg. The highest dose available is 100mg, which lasts the longest. We recommend most people try 50mg of Viagra if they haven’t used it before. 50mg works for most men and has a lower risk of side effects than 100mg.

The risk of side effects goes up with dosage, and side effects may last longer and be more intense with higher, longer-lasting doses.

Higher doses also take slightly longer to reach their maximum level inside the body, so they take slightly longer to work than lower doses.

For more information see our page on Viagra dosages.