First there was the little blue pill that revolutionised millions of relationships around the world. Now, the man who helped invent Viagra is on a mission to help men suffering from another problem between the sheets.
Professor Mike Wyllie has created a spray-on drug that he claims could help nine in 10 men who suffer from premature ejaculation. The Fortacin medication contains low doses of two anaesthetics that reduce sensitivity and help men carry on lovemaking about five times longer.
Research showed that after nine months' use, the average duration of intercourse had risen 10 times. Wyllie was part of the team in the 1990s that created Viagra to tackle erectile dysfunction.
He believes the spray is the "next big revolution after Viagra".
"Premature ejaculation has a devastating effect on relationships."