Viagra

(sildenafil)

3.7/ 5 average rating with 843 reviewsforViagra
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Helps you get aroused and achieve an erection/orgasm.

Skip Upsides & Downsides section. Skip to side effects section.

Our bottom line

Viagra (sildenafil) is an effective, first-choice treatment for erectile dysfunction. However, you need to take Viagra (sildenafil) at least 30 minutes before having sex, so the lack of spontaneity may not work for some people.

Lowest price near you
  • Price before coupon
    $88.19
  • Lowest price with coupon
    $17.65
    80% savings
Quick facts about Viagra
  • Drug class: Men's health
  • Rx status: Prescription only
  • Generic status: No lower cost generic available

Upsides

  • Viagra (sildenafil) is the first-choice medication for treating erectile dysfunction.
  • Viagra (sildenafil) does not have to be taken everyday, it can be taken when you need it.
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What to expect from Viagra, on one page

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People’s experience with Viagra

843reviews so far. What do you think?

Downsides

  • Viagra (sildenafil) 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.
  • Viagra (sildenafil) can cause flushing, headache and dizziness, or sudden hearing and vision changes.
  • You can't use Viagra (sildenafil) if you've recently taken nitrates like Isordil, Imdur, or nitroglycerin (Nitro-BID, Nitro-Dur, Nitrostat).
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What to expect from Viagra, on one page

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How it works

Viagra (sildenafil) is a phosphodiesterase-type 5 (PDE-5) inhibitor. Blocking PDE-5 allows for opening of blood vessles in the penis to help create an erection.

Quick facts about Viagra
  • Drug class: Men's health
  • Rx status: Prescription only
  • Generic status: No lower cost generic available

Dosage forms

  • Pill
People’s experience with Viagra

843reviews so far. What do you think?

Prices and coupons

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Prices and coupons for 30 (20mg) tablets of sildenafil near
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What to expect when you take Viagra (sildenafil) for Erectile dysfunction

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  • First few hoursHours
    First few daysDays
    First few weeksWeeks
    First few monthsMonths
  • Effectiveness
  • Full effects
  • First few hoursHours
    First few daysDays
    First few weeksWeeks
    First few monthsMonths
  • Possible side effects
  • Headache
  • Flushing
  • Low blood pressure
  • Abnormal vision
  • Indigestion
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Side effect rates for Viagra (sildenafil)

From 1459 clinical trials of Viagra when taken for erectile dysfunction
  • Headache
    16%16%
    4%4%
  • Flushing
    10%10%
    1%1%
  • Indigestion
    7%7%
    2%2%
  • Nasal Congestion
    4%4%
    2%2%
  • Urinary Tract Infection
    3%3%
    2%2%
  • Abnormal Vision
    3%3%
  • Diarrhea
    3%3%
    1%1%
  • Dizziness
    2%2%
    1%1%
  • Rash
    2%2%
    1%1%
0%
10%
20%
30%
40%
50%
60%
70%
80%
Where we got our data »

The placebo bar shows how common a side effect was for people taking a sugar pill instead of Viagra.

Viagra (sildenafil)
Placebo

People taking Viagra felt side effect more

People taking Viagra felt side effect less

No difference

Risks and Warnings for Viagra (sildenafil)

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    • Higher risk if:
    • Having a heart attack, stroke, or rhythm problem in your heart in the last 6 months

    Taking Viagra (sildenafil) for erectile dysfunction can put you at increased risk for heart attack or stroke if you've had problems with your heart in the past. It is not recommended for men to take Viagra (sildenafil) if they've had a heart attack in the past 3 months or a stroke or a diagnosis of moderate to severe heart failure in the past 6 months. Talk to your doctor if you are interested in taking this medication.

Pharmacist Q&A

Viagra (sildenafil) questions for

Frequently Asked Questions

This medication treats erectile dysfunction.

Who is this drug for?

This medication treats erectile dysfunction.