Prescription onlyNo lower cost generic available

Viagra

(Sildenafil)

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Helps you get aroused.

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Prescription onlyNo lower cost generic available

Our pharmacists’ bottom line

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.

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  • First-choice medication for treating erectile dysfunction.
  • It can be taken just when you need it.
  • 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.
  • 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).
  • Taking it after eating a high-fat meal can delay or reduce its effects.

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Side effects for Viagra (Sildenafil)

From clinical trials of Viagra / Erectile dysfunction ( 1459)

  • HeadacheHeadache16% for Viagra vs.4% for placebo
  • FlushingFlushing10% for Viagra vs.1% for placebo
  • IndigestionIndigestion7% for Viagra vs.2% for placebo
  • Nasal congestionNasal congestion4% for Viagra vs.2% for placebo
  • Abnormal visionAbnormal vision3% for Viagra vs.0% for placebo
  • DiarrheaDiarrhea3% for Viagra vs.1% for placebo
  • Urinary tract infectionUrinary tract infection3% for Viagra vs.2% for placebo
  • DizzinessDizziness2% for Viagra vs.1% for placebo
  • Respiratory tract infectionRespiratory tract infection2% for Viagra vs.0% for placebo
  • Back painBack pain2% for Viagra vs.0% for placebo

What to expect when you take Viagra (Sildenafil) for Erectile dysfunction

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Tips from our pharmacists
  • 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.
  • 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.
  • Works best when taken on an empty stomach. Fatty foods can prevent Viagra (Sildenafil) from working as well.

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
    • Having low or high blood pressure
    • Heart failure or coronary artery disease causing unstable angina (chest pain)

    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, especially in the past 6 months. Talk to your doctor if you are interested in taking this medication.

Means that some groups have a high risk of experiencing this side effect

Tips from pharmacists and people taking Viagra (Sildenafil)

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The FDA category for this medication is B. It is advised that you: Probably safe
Pregnancy
Food
  • Upsides and downsides from our pharmacists
  • Taking it after eating a high-fat meal can delay or reduce its effects.
  • Tips from our pharmacists
  • Works best when taken on an empty stomach. Fatty foods can prevent Viagra (Sildenafil) from working as well.
Sex
  • Upsides and downsides from our pharmacists
  • You need to take it at least 30 minutes before sex.
  • Tips from our pharmacists
  • 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.
  • Risks from our pharmacists
  • 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.