Viagra The Little Blue Pill That Will

When the impotence drug Viagra (sildenafil)was introduced in 1998, doctors developed writers cramp from filling out prescriptions. The scientists who discovered sildenafil citrate were not looking for a treatment for erectile dysfunction at all, but rather a drug to treat hypertension and angina. While the treatment had little effect on these ailments, it did produce pronounced erections. It appears to work by releasing nitric oxide in the penis, which leads to muscle relaxation and increased inflow of blood. In spite of rumors, there is no clinical evidence that it improves sexual performance in men who are not experiencing regular erectile dysfunction.
Today Viagra and or Revatio and other sildenafil generically name brands is taken every three seconds worldwide. More than 10 million men (including some who have had prostate surgery) are grateful to the little blue pills for reinvigorating their sex lives.

Here's what doctors have learned about Viagra to this point in time.

• It selectively stimulates blood flow By suppressing an enzyme that inhibits blood flow into cells in the penis, Viagra makes erections possible. It works without increasing blood flow elsewhere in the body.

• It works for most men including elderly a men and men with diabetes. It even works with those with spinal cord injuries. About 72% of men who have taken Viagra report that it works. Viagra works best in men with impotence caused by psychological factors. It is less effective in men who have experienced nerve damage due to radical prostate surgery.

• It is not an aphrodisiac. Viagra doesn't cause erections or increase sex drive-although men who regain their ability to perform sexually may experience an increase in desire. Men who take Viagra still require erotic stimulation (and a willing partner) to achieve an erection adequate for intercourse.

Timing is important: Viagra starts to work within 30 minutes. The effect lasts up to four hours.

• It works at low doses. Some doctors recommend 50 mg, but I start everyone at 25 mg, which is usually effective.

To save money you may want to split the dose. A prescription for Viagra costs the same whether the dose is 25 mg or 50 mg. Ask your doctor to prescribe the 50 mg pills then split them.

• Side effects are minor. Between 10% and 15% of men who take Viagra experience headache or indigestion. A larger percentage have facial flushing or nasal congestion. The side effects are dose-related if you take a lower dose, you'll be less likely to have side effects.

Waming At least 130 men have died shortly after taking Viagra. Most of the deaths occurred in men with underlying cardiovascular disease. Heart patients should consult their cardiologists before trying Viagra. Drug interactions are possible. Don't take Viagra if you're also taking nitrate drugs (such as nitroglycerine) for heart problems. Combining the medications can cause a potentially deadly reduction in blood flow to the heart.