A man was amputated from his man after taking Viagra, for example, watchdogs.

This was one of the 279 "side effects" of the blue sex pill reported in the past two years.

    A man has his man amputated after taking Viagra, say the watchdogs

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A man has his man amputated after taking Viagra, say the watchdogsCredit: Rex Features

Dozens of men have suffered from "priapism" – painful and persistent erections – while Peyronie's disease has left at least two more with a banana-shaped baby.

The Medicines and Health Products Regulatory Agency (MHRA) has registered 28 deaths related to Viagra or its generic version, sildenafil.

Ten men thought it might have caused heart problems, while two others said it caused a blockage of the nose.

Ten others said they had blurred vision.

About 3.5 million prescriptions are distributed each year, while many other men buy it over the counter for about £ 4.

It is also given to patients with blood pressure problems.

    Here's how Viagra affects the body in 24 hours.

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Here's how Viagra affects the body in 24 hours.Credit: Superdrug

A spokesman for the MHRA said: "Viagra is considered an effective treatment for erectile dysfunction and to improve exercise capacity in life-threatening severe lung diseases, called pulmonary arterial hypertension."

Viagra maker Pfizer said it was the people who reported the most side effects.

A spokesperson added: "The safety profile of Viagra is based on more than 9,570 patients participating in 74 double-blind, placebo-controlled clinical trials, as well as post-marketing surveillance collected and reviewed regularly since then. more than 10 years since product launch. "

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