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    From £25.99
    • Over-the-counter Cialis (Tadalafil)
    • Works for up to 36 hours
    • Effectively treats erectile dysfunction in just 30 minutes
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    From £25.99
    • Designed to be taken daily
    • Allows for spontaneous sex
    • Brings sexual freedom
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    From £12.99
    • Lasts for 36 hours
    • Take 2 hours before sex
    • Allows for sexual spontaneity
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    • Popular ED treatment
    • Lasts up to 5 hours
    • Works in 30-60 minutes
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    From £17.99
    • Lasts for up to 5 hours
    • Kicks in within 15-30 minutes
    • Suitable for those who may not be able to take other ED medicines
    Erectile Dysfunction
    1234 · 20 min read

    Viagra vs Levitra vs Cialis

    Best Treatment for ED

    Shopping around for the best ED medication? There are several to choose from. In this article, we'll discuss the advantages and disadvantages of the most popular ED medicine, Viagra, Cialis and Levitra.

    How does an ED treatment work?

    All three drugs are in a class called "PDE5 inhibitors". They work by blocking an enzyme called phosphodiesterase type 5, PDE5 for short. They boost a chemical in your body called nitric oxide which encourages muscles in your penis to relax. This allows blood to flow freely to your penis if you are aroused by sexual stimulation. All three drugs help you maintain an erection long enough to have sex.

    Following is a table outlining basic features found in each of these ED medications.

    Brand Name:

    Viagra

    Cialis

    Levitra

    Generic Name:SildenafilTadalafilVardenafil
    Form of Medication:Oral TabletOral TabletOral Tablet
    Doses Prescribed:25mg, 50mg, 100mg2.5mg, 5mg, 10mg, 20mg5mg, 10mg, 20mg
    Typical Dose:50mg10mg (as needed) or 2.5mg (daily)10mg, 5mg if over 65
    When to Take:30-60 minutes before sex30 minutes before sex60 minutes before sex
    How long active:4 hoursup to 36 hours4-5 hours
    Cost:LowMediumHigh

    Why would a doctor prescribe one ED medication over another?

    There are a number of reasons a doctor may prescribe one of these three vs the others. Things they take into consideration are side effects and how to best work them into your schedule. For instance, if you are not certain when the opportunity for sex will present itself, Cialis may be a better choice than Viagra as it remains active in your system for longer.

    The following list contains all the more common (not serious) side effects of all three medications. The list is useful if you are experiencing side effects from one of the medications are interested in others which may not have the same side effects.

    What are the common side effects of ED treatment?

    Following is a table outlining the potential side effects of each ED medication. Keep in mind that not all men will experience these side effects, and that the chance of experiencing side effects may increase with larger doses.

    Side effect

    Viagra

    Cialis

    Levitra

    Stuffy or runny nosexxx
    Headachexxx
    Dizzinessx x
    Upset stomachxxx
    Nauseax  
    Indigestion xx
    Vision changesx  
    Rashx  
    Flushingxxx
    Back painxxx
    Pain in the limbs x 
    Muscle achesxx 

    Is your ED medication causing dizziness? Consider taking Cialis, which does not have "dizziness" listed as a potential common side effect. Is Viagra giving you nausea? These are not listed as side-effects of both Cialis and Levitra. Are you concerned with indigestion caused by ED meds? These are listed as side-effects under Cialis and Levitra, but not for Viagra. In this case, Viagra would be the better choice (or perhaps the indigestion is unrelated if you experience it while taking Viagra).

    Below is a breakdown of potential side effects and the better alternative for erectile dysfunction medications.

    Cialis vs Viagra (side effects)

    A doctor may prescribe Cialis for you if Viagra is causing dizziness, nausea, vision changes or rashes, as these are not considered side effects of Cialis. Likewise, if Cialis is causing indigestion or pain in the limbs, a doctor may prescribe Viagra (as these are not considered side effects of Viagra).

    Cialis vs Levitra (side effects)

    If you are experiencing dizziness on Levitra, a doctor may prescribe Cialis for you. Likewise, if Cialis is causing pain in the limbs or muscle aches, a doctor may prescribe Levitra.

    Viagra vs Levitra (side effects and cost)

    If you are experiencing nausea, vision changes, rashes or muscle aches on Viagra, a doctor may prescribe Levitra. Likewise, if you are experiencing indigestion on Levitra, a doctor may prescribe Viagra.

    You may notice that there are many more side effects associated with Viagra when compared with Levitra. While there are more side effects with Viagra, it is much cheaper to take. Generic Sildenafil (Viagra) costs around 91p per tablet. On the other hand, the best deal on Levitra when buying the largest package of 64 pills is currently £2.58 per tablet. While there are fewer side effects with Levitra, it is generally more expensive.

    What are the more serious side effects of ED treatments?

    Following is a table outlining the more serious potential side effects of each ED medication. Not all men will experience these side effects as they are considered rare. If you experience any of the following, discontinue use immediately and speak with your doctor.

    Viagra

    Cialis

    Levitra

    heart attack symptoms--chest pain or pressure, pain spreading to your jaw or shoulder, nausea, sweatingvision changes or sudden vision losserection is painful or lasts longer than 4 hours (prolonged erection can damage the penis)ringing in your ears, or sudden hearing lossirregular heartbeatswelling in your hands, ankles, or feetshortness of breathseizure (convulsions)a light-headed feeling, like you might pass out a light-headed feeling, like you might pass out an erection is painful or lasts longer than 4 hours (prolonged erection can damage the penis) vision changes or sudden vision loss ringing in your ears or sudden hearing loss heart attack symptoms - chest pain or pressure, pain spreading to your jaw or shoulder, nausea, sweating heart attack symptoms - chest pain or pressure, pain spreading to your jaw or shoulder, nausea, sweatingvision changes or sudden vision losserection is painful or lasts longer than 4 hours (prolonged erection can damage the penis)ringing in your ears, or sudden hearing lossirregular heartbeatswelling in your hands, ankles, or feetshortness of breatha light-headed feeling, like you might pass outpenis erection that is painful or lasts 4 hours or longerseizure (convulsions)

    What are some reviews of each ED treatment?

    ED Treatment Reviews

    Here are some reviews from real users of these ED medications:

    Viagra User - "Really helps me sustain me hard on and get the most out of sex. I will never be without this drug."

    Cialis User - "I want to shout from a mountain top how wonderful it is. My husband is back and we are both generally much happier."

    Levitra User - "Very effective medication, especially if you follow guidelines."

    If you want to read more reviews about erectile dysfunction medications, check out drugs.com

    Summary

    In summary, there are potential side effects with all prescription medications. Viagra tends to have slightly more side effects than Cialis, while Levitra has the least amount of side effects. This is reflected in the cost, where Viagra is the cheapest, Cialis is slightly more expensive and Levitra is the most expensive of all 3.

    All three medications have a similar effect of causing erections, while there are differences in how long you must wait until they remain effective in your system. Cialis is the winner in that category, as it can be effective in your system up to 36 hours. Cialis is useful in situations where you are not exactly sure when the opportunity to have sex will arise.

    What alternative forms of PDE5 inhibitor ED treatments exist?

    Men suffering with erectile dysfunction can use alternatives to oral PDE5 inhibitor medications (like Viagra and Cialis) such as penis creams for ED such as Alprostadil cream (branded as 'Vitaros cream').

    More information

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    • Over-the-counter Cialis (Tadalafil)
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    Blog author

    Scott Weaver

    Scott is an experienced and professional content writer who works exclusively for UK Meds.

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