What Dose Of Viagra Is Right For Me?

Dr. Babak Ashrafi

Medically reviewed by

Dr Babak Ashrafi

Last reviewed: 07 Jun 2022

Viagra is a common branded erectile dysfunction (ED) treatment for men who need help getting or keeping an erection. The usual Viagra dose is 50mg taken around an hour before sexual activity. The maximum Viagra dose is 100mg and you should not increase your dose unless it has been prescribed. You should speak to your doctor if you need help finding the right dose of Viagra or if your current dose is not working as it should.

Contents
1 pack of 4 50mg Viagra sildenafil citrate film-coated oral tablets
 

Viagra dosages available

Viagra is available in 3 different dosages, depending on your ED symptoms and any other health conditions you may have. The usual starting dose for Viagra is one 50mg tablet. This means it contains 50mg of the active ingredient, which is sildenafil citrate.

This dose may not work for everyone. You may still find it difficult to get or keep an erection long enough for sexual activity. Your doctor may increase your Viagra dosage, but you must speak to them first.

Standard dose: 50mg Viagra

If your doctor has checked your medical history and you do not take any medications that could interact with Viagra, they will start you on the recommended dose of 50mg. You should take this around an hour before sexual activity. You should swallow your tablet whole, with a glass of water. You should never take more than one tablet a day.

Maximum dose: 100mg Viagra

If you have been using the 50mg dose and it is not working as it should, your doctor may prescribe you a 100mg dose. Before increasing your dose your doctor may talk to you about how to get an erection, as you need to be aroused for Viagra to work.

Taking more than 100mg will not make Viagra work better and will increase side effects. It is not safe to increase your dose without speaking to a doctor.

Lowest dose: 25mg Viagra

If you get side effects that bother you while taking Viagra, your doctor may suggest taking a lower dose to see if this lessens side effects and still helps you get and keep an erection. You could also be started on a lower dose if you have high blood pressure and take alpha blockers.

The 25mg dose of Viagra may be used if you are taking certain medications called protease inhibitors. You might take these if you are getting treatment for HIV. Your doctor might start you on a lower dose of Viagra to make sure you do not get side effects.

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What dose of Viagra should I take?

The correct Viagra dosage is different for every man. This will depend on how difficult it is for you to get or keep an erection. You should take Viagra as your doctor has prescribed and speak to your doctor if you think your current dose is not working. Sometimes it takes time for Viagra to work as it should. You may need to try it more than once, at different times in the day.

Taking Viagra for the first time

The recommended dose is 50mg if taking Viagra for the first time. Your doctor will tell you if you need a lower dose of 25mg. You should take Viagra around an hour before you plan to have sex. It should work within an hour but can be quicker. It can also be slower if you have just eaten, meaning it could take up to 2 hours to work. Viagra usually lasts for around 2 to 4 hours.

When taking Viagra for the first time, it helps if you are as relaxed as possible. For Viagra to work correctly, you must be in the right frame of mind and be sexually aroused. It can take your body a while to get used to any new medication, so you may need to take it a few times for it to have the best effect. If Viagra does not work the first time, try again the next day, or the next time you plan to have sex. You should try for up to 8 times on different occasions before you can be sure it won’t be any more effective. It can take this long for levels of the drug to build up enough in your body.

You should limit your alcohol intake, as this can increase side effects and lower the chances of Viagra working effectively. Remember that Viagra can help you get and keep an erection, but it does not affect how quickly you ejaculate. You may also need to use premature ejaculation treatment.

Changing your current dose

To change your current dose, your doctor will ask you to try Viagra a few times. It can take some time for it to work as it should, especially if you are nervous or are not sexually aroused. You should speak to your doctor if you have been using Viagra and it is not helping you to keep or maintain an erection for sexual activity.

If Viagra is not working for you, there are alternative treatments available for ED. You can also try an erectile dysfunction trial pack, which contains 3 different ED treatments. Your doctor may recommend using different medications to see if another treatment works better.

Which dose of Viagra works best?

The best Viagra dosage for you will depend on your ED symptoms. Some people may find that 25mg of Viagra is enough to get and keep an erection, with fewer side effects. You may need the recommended dose of 50mg and it could take a few tries before this works as it should.

Some men need a stronger dose of 100mg, but you should never take more than you have been prescribed.

Which dose of Viagra works the quickest?

Each Viagra tablet will work at the same speed, no matter which Viagra dose you have been prescribed. Sometimes Viagra can work in as little as 30 minutes, but this depends on your level of sexual arousal, how quick your metabolism is, and whether you have eaten. Any dose of Viagra will usually work around an hour after taking it.

Using Viagra on a full stomach will mean it takes longer for your body to absorb the medication, which could delay the effects of Viagra for up to 2 hours.

What is the maximum dose of Viagra that is safe to take?

Usually, you should not take more than 100mg, but the maximum dose of Viagra that is safe to take will be different for every man. Taking more than 100mg will not give you a harder erection or make Viagra work quicker but could increase the risk of side effects, especially serious side effects.

If you have other medical conditions or take some medications, it may not be safe for you to take more than 25mg or 50mg. Always take your Viagra dose as your doctor has prescribed and speak to them if you think it is not working. They may recommend a different erectile dysfunction treatment.

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Medically reviewed by:
Dr Babak Ashrafi Clinical Lead for Service Expansion

Babak studied medicine at King’s College London and graduated in 2003, having also gained a bachelor’s degree in Physiology during his time there. He completed his general practice (GP) training in East London, where he worked for a number of years as a partner at a large inner-city GP practice. He completed the Royal College of GPs membership exam in 2007.

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Last reviewed: 07 Jun 2022


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