Compare Viagra vs. Levitra

Head-to-head comparisons of medication uses, side effects, ratings, and more.

Viagra
(Sildenafil)

Levitra
(Vardenafil)

Helps you get aroused. Viagra (Sildenafil) is a first-choice treatment for erectile dysfunction. However, you need to take it at least 30 minutes before having sex, so the lack of spontaneity may not work for some people.Helps you get aroused. Levitra (Vardenafil) is a first-choice treatment for erectile dysfunction. However, you have to take it at least 60 minutes prior to sex, so the lack of spontaneity may not be good for some people. It can also be expensive.
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Reviews & ratings
Button Group. All currently active
Button Group. All currently active
5.121140142517815Viagra
Reviews for Viagra (Sildenafil)
67%
of people say Viagra (Sildenafil) is worth it
51%
say it works well
16%
say it's a big hassle
Reviews for Levitra (Vardenafil)
62%
5% vs. Viagra (Sildenafil)
36%
15% vs. Viagra (Sildenafil)
19%
3% vs. Viagra (Sildenafil)
Side effects
ViagraLevitra
  • Headache 12%
  • Flushing 9%
  • Nasal congestion 2%
  • Diarrhea 2%
  • Dizziness 1%
  • Rash 1%
  • Urinary tract infection 1%
More Viagra side effects »
    More Levitra side effects »
    How it works
    ViagraLevitra
    Viagra (Sildenafil) is a PDE-5 inhibitor. Blocking PDE-5 allows blood to enter the penis and helps create an erection.Levitra (Vardenafil) is a PDE-5 inhibitor. Blocking PDE-5 allows blood to enter the penis and helps create an erection.
    Type of medication
    ViagraLevitra
    Phosphodiesterase-5 enzyme inhibitorPrescription only
    Phosphodiesterase-5 enzyme inhibitorPrescription only
    Available as
    ViagraLevitra
    • Pill
    • Pill
    • Dissolving tablet
    Used for (click to learn more)
    ViagraLevitra
    Risk factors for serious side effects
    ViagraLevitra
    • Having a heart attack, stroke, or rhythm problem in your heart in the last 6 months
    • Having low or high blood pressure
    • Heart failure or coronary artery disease causing unstable angina (chest pain)
      • Men over 50 years of age
        • Taking alpha blockers
        • Taking medications for high blood pressure
        Detailed Viagra (Sildenafil) risks & warnings »
        • Having a heart attack, stroke, or rhythm problem in your heart in the last 6 months
        • Having low or high blood pressure
        • Heart failure or coronary artery disease causing unstable angina (chest pain)
          • Men over 50 years of age
            • Taking alpha blockers
            • Taking medications for high blood pressure
            • Taking medications to control your heart rhythm
            Detailed Levitra (Vardenafil) risks & warnings »
            Pregnancy category
            ViagraLevitra
            BFDA pregnancy category (Probably safe)

            Research studies with animals haven’t found a risk to unborn babies, but it hasn’t been properly studied in humans.

            See the FDA package insert
            BFDA pregnancy category (Probably safe)

            Research studies with animals haven’t found a risk to unborn babies, but it hasn’t been properly studied in humans.

            See the FDA package insert
            Alcohol
            No specific alcohol-related info.No specific alcohol-related info.
            Food
            • Taking it after eating a high-fat meal can delay or reduce its effects.
            • Works best when taken on an empty stomach. Fatty foods can prevent Viagra (Sildenafil) from working as well.
            • It can be taken with or without food.
            Kidneys and liver
            No specific kidneys and liver-related info.No specific kidneys and liver-related info.
            Sex
            • You need to take it at least 30 minutes before sex.
            • It's best to take Viagra (Sildenafil) about 1 hour before sexual activity, but you can take it anywhere between 4 hours and 30 minutes before you need it.
            • If you have an erection for more than 4 hours, go to the ER or call your doctor.
            • There have been reports of men having an erection lasting more than 4 hours while on Viagra (Sildenafil). This has been rare. If not treated in time, this can cause permanent damage to your penis, including impotence. Talk to your doctor immediately or go to the emergency room if this happens.
            • Needs to be taken at least 60 minutes before sex.
            • It's best to take Levitra (Vardenafil) about 1 hour before sexual activity, but you can take it anywhere between 4 hours and 30 minutes before you need it.
            • If you have an erection for more than 4 hours, go to the ER or call your doctor.
            • There have been reports of men having an erection lasting more than 4 hours while on Levitra (Vardenafil). This has been rare. If not treated in time, this can cause permanent damage to your penis, including impotence. Talk to your doctor immediately or go to the emergency room if this happens.
            Sleep
            No specific sleep-related info.No specific sleep-related info.
            Weight
            No specific weight-related info.No specific weight-related info.
            Upsides and benefits
            ViagraLevitra
            • It can be taken just when you need it.
            • First-choice medication for treating erectile dysfunction.
            • It can be taken only when you need it.
            • It can be taken with or without food.
            • Available in two different forms, as a regular tablet and as an orally-disintegrating tablet.
            • First-choice medication for treating erectile dysfunction.
            Downsides and risks
            ViagraLevitra
            • You need to take it at least 30 minutes before sex.
            • Can't be taken if you've had a heart attack in the past 3 months, or stroke or heart failure in the past 6 months.
            • Side effects can be more pronounced if you're over age 65.
            • Taking it after eating a high-fat meal can delay or reduce its effects.
            • Can cause flushing, headache, and dizziness, or sudden hearing and vision changes.
            • Can't use if you've recently taken nitrates like Isordil, Imdur, or nitroglycerin (Nitro-BID, Nitro-Dur, Nitrostat).
            • Needs to be taken at least 60 minutes before sex.
            • Only available as brand name, so it can be expensive.
            • You need to reduce the amount of grapefruit you eat while taking Levitra (Vardenafil).
            • Can cause flushing, headache, and dizziness, or sudden hearing and vision changes.
            • Can't use if you've recently taken nitrates like Isordil, Imdur, or nitroglycerin (Nitro-BID, Nitro-Dur, Nitrostat).
            Tips from our pharmacists for people taking the medication
            ViagraLevitra
            • It's best to take Viagra (Sildenafil) about 1 hour before sexual activity, but you can take it anywhere between 4 hours and 30 minutes before you need it.
            • Works best when taken on an empty stomach. Fatty foods can prevent Viagra (Sildenafil) from working as well.
            • Don't take it more than once a day.
            • If you have an erection for more than 4 hours, go to the ER or call your doctor.
            • Can cause flushing, a headache, or dizziness.
            • It's best to take Levitra (Vardenafil) about 1 hour before sexual activity, but you can take it anywhere between 4 hours and 30 minutes before you need it.
            • Don't take it more than once a day.
            • If you have an erection for more than 4 hours, go to the ER or call your doctor.
            • Can cause flushing, a headache, or dizziness.
            Learn more
            More about ViagraSide effectsReviews & ratingsAlternativesFDA package insert
            More about LevitraSide effectsReviews & ratingsAlternativesFDA package insert