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The Active Ingredient in Viagra

Sildenafil

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Sildenafil is the active ingredient in Viagra and is FDA approved to treat ED. It helps relax blood vessels and improves blood flow to your penis to allow for a harder and longer-lasting erection.

* Prescription products require an online consultation with a physician who will determine if a prescription is appropriate.

* Risks of this medication can include flushing, headache, nausea, dizziness, chest or arm pain and in rare cases, changes in vision or loss of sight. Seek emergency care right away if you have an

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* This page has been medically reviewed by Patrick Carroll, MD.

Get hard

Sildenafil (Active Ingredient in Viagra) helps you get hard when the time is right. You shouldn’t go from 6 to midnight just by taking it. If you do, contact your doctor.

Learn: what to expect from taking sildenafil

Stay hard

Sexy time is meant to be sexy. That means keeping that erection strong for as long as it’s needed. Aint no one have time for bad sexy time.

Learn: how long does viagra (sildenafil citrate) last

It's science

Viagra has been prescribed by doctors across the US for the last 20 years. It works, it’s effective, and we’re now connecting guys directly to what they need.

Learn: all about ED treatments

Stay safe

Some men experience a tingly feeling in their body, headaches, blurred vision and other side-effects from Sildenafil (Viagra). Make sure to read all the important safety information and use our platform to talk with a doctor if you are experiencing side-effects so they can recommend adjustments to your treatment plan.

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Viagra vs Sildenafil

Viagra is a brand name medication invented by Pfizer, while sildenafil (or sildenafil citrate) is the active ingredient in Viagra that’s responsible for its positive effects on treating erectile dysfunction.

Learn: how Viagra compares to Sildenafil
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Important Safety Information