Viagra May Cause Vision Loss In a new study, US researchers describe seven patients who developed nonarteritic ischemic optic neuropathy (NAION), an eye problem that can result in permanent vision loss...

Viagra FAQ You must be sexually stimulated for VIAGRA to work. In one study, VIAGRA was shown to work in some men in as quickly as 14 minutes...

Viagra FAQ

Will VIAGRA work as soon as I take it?

You must be sexually stimulated for VIAGRA to work. In one study, VIAGRA was shown to work in some men in as quickly as 14 minutes. This study included 228 men who'd had success with VIAGRA in the past, each taking 100 mg at least 2 hours after eating. For most men, VIAGRA can work in around 30 minutes. VIAGRA lasts for at least 4 hours, giving you time to enjoy the experience.

What if VIAGRA didn't work the first time?

VIAGRA has been shown to work for more than 80% of men taking VIAGRA 100 mg versus 24% of men taking a sugar pill. So if you're not getting the results you want, try it again. If you're still not satisfied, talk to your doctor. Often a dose adjustment is all you need to improve your sex life.

How often can I take VIAGRA?

For most patients, VIAGRA can be taken once a day, as needed. In patients taking certain protease inhibitors (like those for the treatment of HIV), it is recommended not to exceed a maximum single dose of 25 mg of VIAGRA in a 48-hour period.

Can I take VIAGRA if I have other conditions or am taking other medications?

VIAGRA has been proven to work safely for men with a wide variety of health issues. These include heart problems, high cholesterol, high blood pressure, diabetes, prostate problems, and spinal injury.

VIAGRA can also be safely used with many other medicines, such as medicine for high blood pressure and depression.

If you take nitrate drugs, often used for chest pain (known as angina), don't take VIAGRA.

Can I take VIAGRA with food and alcohol?

VIAGRA is just as effective with or without food and alcohol. To get the fastest response, try avoiding high-fat meals 2 hours before taking VIAGRA.

Can I cut my pills in half?

VIAGRA pills should not be cut in half. No studies have been done to determine if half a pill is effective.

Who should not take VIAGRA?

VIAGRA is only for men with ED. VIAGRA is not approved for newborns, children, or women. Do not let anyone else take your VIAGRA. VIAGRA must be used only when prescribed by a healthcare professional.

Before you start treatment with VIAGRA, be sure to ask your doctor if your heart is healthy enough for sexual activity. If you're a man who uses nitrate drugs, like nitroglycerin, you should never take VIAGRA. The combination of VIAGRA and nitrates can make your blood pressure suddenly drop to an unsafe level. You could get dizzy, faint, or even have a heart attack or stroke. Nitrates are found in many prescription medicines that are used to treat angina (chest pain due to heart disease). These include:

• Nitroglycerin (sprays, ointments, skin patches or pastes, and tablets that are swallowed or dissolved in the mouth)
• Isosorbide mononitrate and isosorbide dinitrate (tablets that are swallowed, chewed, or dissolved in the mouth)