Yes, but it is likely that this was the health problems that are not dead, as the drug.

In the first nine months after Viagra was first approved, 128 people died after the reports, including 80 of a heart attack or stroke. The general feeling among doctors is that it is not necessarily the Viagra, but existing cardiovascular problems that have lost their lives, with or without drugs.

Seven months after the drug was Pfizer physicians the warning label, be careful when prescribing the medicine, men with uncontrolled high blood pressure, cardiovascular problems or history of recent heart attack. The label had always warned that the drug may be blood pressure-lowering effect of nitrates such as nitroglycerin patches or nitroglycerin tablets, used to treat certain heart diseases.

Pfizer maintains that most people can be sure the drug, and even cites studies that show 1% of all heart attacks are the result of sex. The company also points to a study of 5391 men in the United Kingdom, Viagra for an average of five months, the study demonstrated no increased risk of heart attack or stroke. But it was not random, so it is not conclusive.

A new study, published in September, Regular Use of Viagra may protect the heart – the heart, but has demonstrated benefit in rabbits.

What happens if I exceed the recommended dosage?

The size of the dose of a role. In studies with patients receiving 50 mg of Viagra, 70% reported improved erections after 12 weeks of use. But that number rose to 82% with 100 mg, the maximum recommended dose.

If 100 mg is good, one might think 200 mg would be better, but that was not the case. In studies, 200 mg of Viagra has not worked more than 100 mg.

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In fact, about 100 mg, almost everything you need more Viagra is More Side Effects. Abnormal vision is a problem, only 11% of the time with 100 mg, but jumps between 40% and 50% with 200 mg, for example. A quarter of men, 200 mg experience facial flushing, while 15% report stomach problems.

There are few studies of what happens when Viagra is in high doses. But in a small study of 20 healthy men who are between 200 mg and 800 mg of Viagra, 95% know that some side effects lasted much longer than usual. Vision problems lasted as long as eight hours for 50% of men who know. And a question that the 600 mg reported an erection in five hours, a potentially harmful problem.