Product info

Viagra is a phosphodiesterase type 5 inhibitor and it works by helping the blood flow into the penis to achieve and maintain an erection during sexual stimulation.

Viagra relaxes muscles and increases blood flow to particular areas of the body.

Sildenafil under the name Viagra is used to treat erectile dysfunction (impotence) in men.

Viagra may also be used for other purposes not listed in this medication guide.

Do NOT use Viagra if:

you are allergic to any ingredient in Viagra
you have been advised by your doctor to avoid sexual activity because of heart problems
you are taking nitrates (eg, isosorbide, nitroglycerin) in any form (eg, tablet, capsule, patch, ointment) or nitroprusside
you use certain recreational drugs called "poppers" (eg, amyl nitrate or nitrite, butyl nitrate or nitrite)

Contact your doctor or health care provider right away if any of these apply to you.

How to use Viagra:
Use Viagra as directed by your doctor. Check the label on the medicine for exact dosing instructions.

An extra patient leaflet is available with Viagra . Talk to your pharmacist if you have questions about this information.
Take Viagra by mouth with or without food. Viagra may not work as quickly if you take it with a high-fat meal.
Viagra is usually taken about 1 hour before sexual activity; however, it may be taken anywhere from 4 hours to a half hour before sexual activity. Talk with your doctor about the best way to take Viagra .
Do not take more of Viagra than recommended or take it more often than once daily, or as directed by your doctor.
If you miss a dose of Viagra and you still intend to engage in sexual activity, take it as soon as you remember. Continue to take it as directed by your doctor.