Viagra is an effective treatment for male erectile dysfunction (ED). This is also known as impotence. Viagra is a little blue pill you take only when you want to have sex. Viagra helps men consistently get and keep an erection when they become sexually stimulated.

Viagra enables many men with ED to respond to sexual stimulation. When a man is sexually aroused, the arteries in the penis relax and widen, allowing more blood to flow into the penis. As the arteries in the penis expand and harden, the veins that normally carry blood away from the penis become compressed, restricting the blood flow out of the penis. With more blood flowing in and less flowing out, the penis enlarges, resulting in an erection.

Yes. The safety of Viagra has been demonstrated in over 130 clinical trials and among 13,000 men. These trials show that taking Viagra is about as safe for your heart as taking a sugar pill. Viagra has been used by more than 23 million men worldwide, and over 1 billion doses of Viagra have been prescribed. In fact, no other ED therapy has been studied more than Viagra.

Yes. Viagra has been shown to improve erectile function in most men with ED, including those with mild, moderate or severe ED.

Viagra has been shown to improve erectile function in most men with ED, including those with mild, moderate or severe ED. In clinical trials, Viagra improved:

• Confidence in ability to achieve and maintain an erection
• Satisfaction with the hardness of erections
• Ability to maintain erections for successful sexual intercourse
• Satisfaction with sexual intercourse

Viagra, when taken as recommended, will remain in your system for 4 to 8 hours, providing more than enough time for those "not so timely" events.

Viagra is taken orally as a once daily dose, thirty minutes to one hour before sexual activity. In order to achieve maximum results, you might need to vary your dosage or the time at which you consume Viagra.

You can eat and drink as you normally do, but do not drink alcohol in excess when taking Viagra (for example, 5 glasses of wine or 5 shots of whiskey). Also, when Viagra is taken with a high fat meal, the rate of effectiveness is reduced.

No. You must be sexually excited for Viagra to work. If you take Viagra and are not sexually stimulated, you will not get an erection. Viagra is not a hormone. It is also not an aphrodisiac. It is a prescription medication that gives men with ED harder erections when they want them, so that they can enjoy a better sex life.

As long as you are sexually stimulated within the 4- to 8-hour timeframe, Viagra will still be working for you.

Viagra is commonly prescribed and sold to men, and it is not recommended for women.

You must be at least 18 years old to order Viagra.