Vardenafil
Medically reviewed by
Dr Brenda IkejiLast reviewed: 28 Aug 2024
Vardenafil is an erectile dysfunction tablet that works by increasing the blood flow to your penis. Vardenafil starts working within an hour, lasts for up to 5 hours, and is effective for up to 80% of people that use it.
Vardenafil is a generic version of Levitra that works in the exact same way, and is available at a lower cost.
Key takeaways
Vardenafil is a medication used to treat erectile dysfunction (ED) in men over the age of 18.
Vardenafil is commonly found as a branded tablet known as Levitra. This is the same medication.
Vardenafil is a phosphodiesterase type 5 inhibitor that can help you to get and keep an erection. It works by relaxing the blood vessels in the penis which helps improve blood flow to the area, making you get an erection when sexually aroused.
Vardenafil should be taken around 25 minutes to an hour before sex and can last up to 5 hours.
What is Vardenafil?
Vardenafil is an erectile dysfunction medication that contains the active ingredient vardenafil citrate, which is a phosphodiesterase type 5 inhibitor. It is similar to other popular pills like Viagra and Cialis.
Vardenafil is a generic medication, which means that any pharmaceutical company can manufacture it and you are not paying for a brand name product. It is just as effective as other erectile dysfunction medications, but it is sold at a cheaper price.
How does vardenafil work?
Vardenafil works by relaxing the blood vessels in the penis which helps improve blood flow to the area, making you get an erection when sexually aroused.
How to buy Vardenafil online?
You can request vardenafil treatment online from trusted websites such as ZAVA. If you order through ZAVA, you just need to complete our short medical questionnaire, and our doctors can prescribe vardenafil if it is safe and appropriate to do so. Your medication will then be sent to your home in discreet packaging, meaning you do not need to visit a pharmacy with your prescription to collect it.
How much does vardenafil cost?
Vardenafil is usually found under the branded name Levitra. ZAVA can prescribe Levitra for ED, starting at £40 for a 4 tablet pack.
Is vardenafil available on the NHS?
Yes, you can get vardenafil on the NHS. You may find it under the generic name vardenafil, or the branded name Levitra. You must speak to your GP if you want to get vardenafil on the NHS.
Can you buy vardenafil over-the-counter?
No, vardenafil can only be prescribed to you which means you cannot get it over-the-counter. Most ED treatments require a prescription. The only ED treatments currently available over the counter are Viagra Connect and Cialis Together.
How to take vardenafil?
- Take 1 tablet of vardenafil 25 to 60 minutes before sex
- Swallow the tablet whole with a glass of water
- You must be sexually aroused for vardenafil to work
You should always take vardenafil as prescribed and never take more than your doctor has told you to.
Vardenafil can be taken with or without food but avoid high fat or heavy meals as this can delay the effect of the medication. Avoid drinking alcohol as this can make it harder to maintain or get an erection. You should also avoid drinking grapefruit juice as this may prevent vardenafil from working as it should and you may lose your erection early.
Do not take vardenafil more than once a day.
How long does it take for vardenafil to work?
Vardenafil usually takes between 25 to 60 minutes to take effect. If you have taken vardenafil after eating a large or high fat meal, it may take a little longer for vardenafil to take effect. This is because your body is also digesting food as well as your medication.
If vardenafil does not work the first time, you should wait until the next time you want to have sex and try again. Make sure this is not on the same day as you cannot take 2 tablets in one day. Your doctor will recommend trying vardenafil on 8 separate occasions before considering a higher dose or changing ED treatment.
How often can you take vardenafil?
You can take vardenafil once per day, which means you should wait 24 hours between doses. If you take more than one tablet in a day, you are more likely to get serious side effects. Speak to your doctor if you take more vardenafil than you should.
How long does vardenafil last?
Vardenafil usually lasts up to 5 hours, but this can be different for every man.
Dosage information
Vardenafil is available in 3 doses:
- 5mg
- 10mg
- 20mg
The usual starting dose of vardenafil is one 10mg tablet, to be taken no more than once a day. This is to see how your body reacts to the medication and how effective it is for you.
If you have tried using vardenafil 8 separate times and it is not working for you or your erections are not lasting as long as you would like, speak to your doctor. They may recommend a higher dose or a different treatment. The highest dose of vardenafil that can be prescribed is 20mg.
If you get side effects, but vardenafil is working for you, your doctor may recommend a lower dose to see if you get the desired results, but reduced side effects.
Who can use vardenafil?
You can use vardenafil if you are over 18 and diagnosed with erectile dysfunction by a doctor. You must also have a prescription for the medication, as it could potentially be unsafe for you if you don’t.
Who should not take vardenafil?
Vardenafil is suitable for most men, but you should not take it if you:
- have an allergy to any of the ingredients in the tablets
- take nitrates, which are a medication for chest pain
- take certain HIV medications called ritonavir or indinavir
- are over the age of 75 and are taking anti fungal medicines called ketoconazole or itraconazole
- have a severe liver or heart problem
- are currently having kidney dialysis
- have had a recent stroke or heart attack
- have or have ever had low blood pressure
- have a family history of degenerative eye diseases like retinitis pigmentosa
- have ever had non-arteritic ischemic optic neuropathy (NAION)
- are taking the medication riociguat
You may still be able to use vardenafil but you should speak with your doctor first if you have:
- a bleeding disorder
- stomach ulcers
- an illness that can cause erections that do not go away, such as leukaemia
- a physical condition that affects the shape of your penis (Peyronie's Disease)
- a heart problem, as it could be dangerous for you to have sex
- taken other treatments for ED recently
- phenylketonuria, as vardenafil contains aspartame and may be harmful
Some medications may make vardenafil unsuitable, so speak to your doctor before using it if you take any medications or are prescribed a new medication whilst taking it.
What are the side effects of vardenafil?
Like all ED treatments, vardenafil may cause some side effects but not every man will get them. If you do get side effects, they are more likely to be mild or moderate.
Very common side effects of vardenafil include:
- headache
Common side effects of vardenafil include:
- blocked or runny nose
- indigestion
- dizziness
- flushing (redness of the skin)
Uncommon side effects of vardenafil include:
- sleep disorder
- swelling of the skin, including lips, face, and throat
- numbness or changes in sense of touch
- sleepiness
- a change in vision
- ringing in the ears
- fast or pounding heartbeat
- breathlessness
- acid reflux
- nausea or vomiting (feeling or being sick)
- dry mouth
- rash
- back or muscle pain
- prolonged erections, you must visit A&E or your doctor if you have an erection that lasts longer than 4 hours
Vardenafil can cause some rare side effects, including:
- conjunctivitis, an inflammation of the eyes
- fainting
- anxiety
- seizure
- amnesia
- allergic reaction
- increased pressure in the eye (glaucoma)
- high or low blood pressure
- nose bleed
- painful erections
- chest pain
For more information on vardenafil side effects, check the patient information leaflet that comes with your medication.
If you have a sudden temporary or permanent loss of vision in one or both eyes, stop taking vardenafil and speak to your doctor straight away. If you get any other severe side effects, go to A&E or call 999 straight away.
To reduce the risk of side effects, you should let your doctor know if you have any medical conditions or take any other medications before using vardenafil. You should also avoid alcohol, as this could increase side effects like dizziness. Do not drink grapefruit juice with vardenafil because this can affect how it works. Only take the dose you have been prescribed and never take vardenafil more than once in a day.
What are the alternatives to vardenafil?
While vardenafil is an effective treatment for erectile dysfunction, it doesn’t work for everyone, and other pills may be a better option for you. Other erectile dysfunction medications include:
Vardenafil vs Viagra
While vardenafil and Viagra have different active ingredients, they are both a type of medication called a phosphodiesterase type 5 inhibitor and do still work in the same way. Viagra is a branded medication and vardenafil is a generic medication, this means Viagra is sold under a brand name whereas vardenafil is not, making it more likely to be cheaper or prescribed on the NHS.
Both vardenafil and Viagra need to be taken about 30-60 minutes before sex, and both last up to 4-6 hours. There is a slight difference in how effective each medication is with studies showing Viagra to be up to 82% effective for men who use it and Levitra (vardenafil) up to 80% effective. How effective these medications are varies from person to person, so while Viagra may be the right treatment for you, Levitra may be more effective for someone else. Your doctor will help you find the right and most suitable ED treatment for your needs.
Frequently asked questions
Can vardenafil tablets be cut in half?
No, vardenafil tablets should only be swallowed whole.
Is vardenafil the same as Viagra?
Vardenafil is not the same as Viagra but is similar. Both medications contain a phosphodiesterase type 5 inhibitor which can help you get and keep an erection when sexually aroused. They both work well for ED but come in different doses.
Is vardenafil stronger than Viagra?
Viagra contains sildenafil, which is a different medication from vardenafil. This does not mean that vardenafil is stronger than Viagra, the active ingredient is just different. Some men find that one medication works better than the other to achieve an erection, but this can just be a personal preference.
Is vardenafil better than Viagra?
Vardenafil is not better or worse than Viagra, this depends on your ED symptoms. Some men find that vardenafil works slightly better than Viagra or gives fewer side effects and vice versa.
Is vardenafil the same as Levitra?
Yes, vardenafil is the generic name for the branded tablet Levitra. This means both medications contain vardenafil, work in the same way, and are prescribed in the same doses.
Can vardenafil make you last longer in bed?
Vardenafil is prescribed for ED, which means it is not meant to make you last longer in bed. You may be able to get and keep an erection for longer, but it cannot help with premature ejaculation. You can speak to one of our doctors about premature ejaculation treatment if you want to last longer in bed.
Brenda studied medicine at St Georges University of London and has most recently worked in John Radcliffe Oxford University Hospitals, covering acute and general medicine.
Meet our doctorsLast reviewed: 28 Aug 2024
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