Daniel Medforth, from Withernsea in East Yorkshire took the pills while at a friend's house over the Bank Holiday weekend.

The 36-year-old was taken ill and then later confessed to his wife what he had done.

She then called an ambulance where he was taken for 36 hours to be examined by a medical professional.

He told The Sun: "I ended up feeling sick, dizzy and hallucinating, everything I saw was green.

"I had a massive erection that would not go away."

After spending two days in hospital, Mr Medforth was later discharged and was forced to spend the rest of his time in bed.

He said: "'It wasn't a permanent erection but every time I brushed against something for five days it sprang into life and it was no use to me.



'Fortunately my wife has forgiven me and I realise I have been very, very lucky.'



He added that he was 'very, very lucky' as he realised Viagra could have more serious and often deadly side effects if not taken correctly.