What is Viagra?
Viagra is an anti-impotence drug manufactured by Pfizer with an active ingredient sildenafile citrate for treatment of male impotence. Sildenafile citrate relaxes the muscles and increases the blood flow to particular areas of the body. The intake of Viagra increases the ability to achieve and sustain erection on being sexually stimulated. Men taking Viagra have reported an amplified sex drive, increased stamina, and quicker recharge. Viagra works together with sexual stimulation to help achieve maximum sexual satisfaction. However, Viagra does not guarantee protection from getting sexually transmitted diseases, including HIV and Hepatitis.
How Viagra works?
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. It is to be noted that Viagra is not a hormone or aphrodisiac, it works only when a man is sexually stimulated.
Viagra is available in the form of tablet and is meant to be taken orally. Ideally it is to be taken almost an hour before the sexual activity. However, Viagra can be taken anytime from 4 hours to 30 minutes before sexual activity. It takes 30 – 45 minutes for showing Viagra’s effect and this effect lasts for almost four hours. If you take Viagra after a high-fat meal (such as fish & chips, cheeseburger or French fries), it may take a little longer to start working. Viagra should not be taken more than once a day unless prescribed by your doctor.