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•	What is VIAGRA? VIAGRA is a pill used by men to treat erectile dysfunction, or ED. It can help many men who have erectile dysfunction get and keep an erection when they become sexually excited. VIAGRA is also known by its scientific name, sildenafil citrate.
•	How does VIAGRA work? VIAGRA is a prescription drug that works by increasing blood flow to the penis. VIAGRA enables many men with erectile dysfunction to respond to sexual stimulation. When a man is sexually excited, VIAGRA helps the penis fill with enough blood to cause an erection. After sex is over, the erection goes away.
•	How long will it take for VIAGRA to work? VIAGRA begins working in about 30 minutes and it can last for up to 4 hours. In one study of prior VIAGRA users that were given a 100-mg tablet 2 hours after eating, it was proven to work in as little as 14 minutes. (Data taken from a study of 228 men with ED who previously had success with VIAGRA. Of the 115 men who took VIAGRA 100mg, 35% had erections hard enough for successful intercourse at 14 minutes, and 51% of men at 20 minutes.)
•	How often can I take VIAGRA? For most patients, VIAGRA can be taken once a day as needed. In patients taking certain protease inhibitors (such as 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. As always, please consult with your doctor if you have any questions about taking VIAGRA.
•	Can I take VIAGRA with alcohol and food? Yes. However, drinking alcohol can temporarily impair the ability to get an erection. To get the best results, it is best not to drink large amounts of alcohol before taking or while taking VIAGRA. VIAGRA can be taken with or without food. When taking VIAGRA, a fatty meal—like a cheeseburger and fries—can slow your body’s ability to absorb the drug. It may not work as quickly. So eat something with less fat if you can, or give yourself more time.
•	Can I take VIAGRA with other medicines? Tell your doctor about any medicines you are taking. Do not take VIAGRA if you take nitrates, often prescribed for chest pain, as this may cause a sudden, unsafe drop in blood pressure. If you have prostate problems or high blood pressure for which you take medicines called alpha blockers, your doctor may start you on a lower dose of VIAGRA. VIAGRA should not be used with other treatments that cause erections. VIAGRA should not be used with REVATIO as REVATIO contains sildenafil, the same medicine found in VIAGRA. If you are taking protease inhibitors, such as for the treatment of HIV, your doctor may recommend a 25-mg dose and may limit you to a maximum single dose of 25 mg of VIAGRA in a 48-hour period. Do not start or stop taking any medicines before checking with your doctor or pharmacist. This includes prescription and nonprescription medicines or remedies.
•	What are the side effects of VIAGRA? The most common side effects of VIAGRA are headache, flushing, upset stomach, and abnormal vision, but there are others. Do not take VIAGRA if you take nitrates, as it may cause an unsafe drop in blood pressure. Seek immediate medical help for an erection lasting more than 4 hours. And if you experience a sudden decrease in vision or hearing, stop taking VIAGRA and call your doctor right away. Read more important safety information on VIAGRA.
•	What if VIAGRA doesn’t work? It’s possible that you may need to take VIAGRA 3 or 4 times before it works for you. Or you may need to try a different dose. VIAGRA may not be right for every man, but in studies it has proven to be effective in up to 4 out of 5 men with ED taking the 100-mg dose (compared to 1 out of 4 men taking a sugar pill). More information about how to take VIAGRA is available on this Web site. If VIAGRA isn’t working for you, your best bet may be to speak to your doctor. Remember: always follow your doctor’s instructions closely to get the best results when taking VIAGRA.

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VIAGRA is prescribed to treat erectile dysfunction (ED).

Important safety information

Do not take VIAGRA if you take nitrates, often prescribed for chest pain, as this may cause a sudden, unsafe drop in blood pressure.

Discuss your general health status with your doctor to ensure that you are healthy enough to engage in sexual activity. If you experience chest pain, nausea, or any other discomforts during sex, seek immediate medical help.

In the rare event of an erection lasting more than 4 hours, seek immediate medical help to avoid long-term injury.

If you are older than age 65, or have serious liver or kidney problems, your doctor may start you at the lowest dose (25 mg) of VIAGRA. If you are taking protease inhibitors, such as for the treatment of HIV, your doctor may recommend a 25-mg dose and may limit you to a maximum single dose of 25 mg of VIAGRA in a 48-hour period.

In rare instances, men taking PDE5 inhibitors (oral erectile dysfunction medicines, including VIAGRA) reported a sudden decrease or loss of vision. It is not possible to determine whether these events are related directly to these medicines or to other factors. If you experience sudden decrease or loss of vision, stop taking PDE5 inhibitors, including VIAGRA, and call a doctor right away.

Sudden decrease or loss of hearing has been rarely reported in people taking PDE5 inhibitors, including VIAGRA. It is not possible to determine whether these events are related directly to the PDE5 inhibitors or to other factors. If you experience sudden decrease or loss of hearing, stop taking VIAGRA and contact a doctor right away.

If you have prostate problems or high blood pressure for which you take medicines called alpha blockers, your doctor may start you on a lower dose of VIAGRA.

VIAGRA should not be used with other treatments that cause erections. VIAGRA should not be used with REVATIO as REVATIO contains sildenafil, the same medicine found in VIAGRA.

VIAGRA does not protect against sexually transmitted diseases, including HIV.

The most common side effects of VIAGRA are headache, facial flushing, and upset stomach. Less commonly, bluish vision, blurred vision, or sensitivity to light may briefly occur.

Please see full prescribing information for VIAGRA (25-mg, 50-mg, 100-mg) tablets.

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