“It is not fair that everybody knows about Viagra, Levitra worked perfectly for me and moreover it is less expensive and easier to find. I almost have not experienced any side effects, at least those severe to make sex impossible. Works like a charm.”

“Honeymoon returned and my husband feels like a teenager again. His erection is the same as at our first date 30 years ago. He feels like a man again, his penis is hard with a big head so he can be proud of it again. Viagra really helps.”

Experts say the findings could lead to "enormous change" in the way the treatment is delivered.

A former employee told the BBC there was a lack of responsibility over a new computer system.

People born using a sperm or egg donor will soon be able to find their biological parents' identities.

Think tank wants financial incentive to keep NHS nurses, midwives and physios in England for 10 years.