Viagra / generic Viagra

sildenafil citrate

from $4/doseGet $15 off
Viagra® is a type of medication known as a PDE5 inhibitor that is used to treat erectile dysfunction. Sildenafil is the...

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Disclaimer: The information provided on this page is not a substitute for professional medical advice, diagnosis, or treatment. If you have any questions or concerns about your health, please talk to a healthcare provider.

Viagra® should be taken without food 30-60 minutes before sex and effects last up to 6-8 hours.

Serious side effects include an erection lasting more than 4 hours, sudden vision loss in one or both eyes, and sudden hearing decrease or loss.

If these occur, seek medical attention immediately.

Talk to your provider about your medical conditions and medications before taking Viagra®.

Do not take Viagra® if you are allergic to its ingredients or if you are already taking nitrates (such as nitroglycerin), street drugs called “poppers” (such as amyl nitrate, amyl nitrite, butyl nitrate), or guanylate cyclase stimulators (such as riociguat).

More about Viagra®

How Viagra® works

01

In order to understand how Viagra® works to treat ED, it’s important to first understand the basics of how erections work.

02

cGMP causes the corpora cavernosa to relax. Allowing blood to rush into the Cavernosal arteries.

03

While blood rushes into the penis, the veins that drain blood from the penis get compressed causing the increased blood to be trapped in the penis causing an erection.

04

An enzyme called phosphodiesterase-5 breaks down cGMP leading the penis to return to its flaccid state.

05

PDE5 inhibitors (PDE5i), like Viagra®, block this enzyme, leading to higher levels of cGMP and improving the ability to obtain and maintain an erection.

FAQ

Important safety information

What you should know before taking Viagra.

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