Viagra

Generic name: Sildenafil citrate

What is Viagra?

Viagra is an oral drug for male impotence, also known as erectile dysfunction (ED). It works by dilating blood vessels in the penis, allowing the inflow of blood needed for an erection.

What is the most important information I should know about Viagra?

Viagra causes erections only during sexual excitement. It does not work in the absence of arousal.

You should not take Viagra if you have been instructed by your doctor not to engage in sexual activity due to heart disease or other heart problems. Viagra may interact with your medications, and should never be taken with medications or foods containing nitrates.

Who should not take Viagra?

You should not take Viagra if you are also consuming other foods or medications that contain nitrates. You should also not take Viagra if you are allergic or sensitive to any of its ingredients.

What should I tell my doctor before I take the first dose of Viagra?

Mention all prescription, over-the-counter, and herbal medications you are taking before beginning treatment with Viagra. Also, talk to your doctor about your complete medical history, especially if you have heart disease; angina; recently suffered a heart attack, stroke or life-threatening arrhythmia; if you have a physical deformation of your penis; sickle cell anemia; an eye disease called retinitis pigmentosa; leukemia; or multiple myeloma.

What is the usual dosage?

The information below is based on the dosage guidelines your doctor uses. Depending on your condition and medical history, your doctor may prescribe a different regimen. Do not change the dosage or stop taking your medication without your doctor's approval.

Adults: The usual dosage is 50 milligrams (mg) taken as needed 1 hour before sexual activity.

How should I take Viagra?

Viagra may be taken anywhere from 30 minutes to 4 hours before sexual activity; however, 1 hour is usually most effective. You should not take more than 1 Viagra dose per day. Viagra may be taken with or without food, but should not be taken with anything that may contain nitrates.

What should I avoid while taking Viagra?

You should not eat food or take medications that contain nitrates such as nitroglycerin.

What are possible food and drug interactions associated with Viagra?

If Viagra is taken with certain other drugs, the effects of either could be increased, decreased, or altered. It is especially important to check with your doctor before combining Viagra with the following: blood pressure lowering medications, such as amlodipine or doxazosin; bosentan; cimetidine; erythromycin; itraconazole; ketoconazole; rifampin; ritonavir; and saquinavir.

What are the possible side effects of Viagra?

Side effects cannot be anticipated. If any develop or change in intensity, tell your doctor as soon as possible. Only your doctor can determine if it is safe for you to continue taking this drug.

Side effects may include: congestion, diarrhea, flushing (skin redness), headache, nasal congestion, urinary tract infection, eyes being more sensitive to light, blurred vision, upset stomach, dizziness

Can I receive Viagra if I am pregnant or breastfeeding?

Viagra is not for use in newborns, children, and women.

What should I do if I miss a dose of Viagra?

Viagra is not for regular use. Take it only before sexual activity. Do not take more than 1 dose in 24 hours.

How should I store Viagra?

Store at room temperature.