Drug reviewers at the US’s Food and Drug Administration, said that it had failed to make the grade in two studies designed to gauge its effectiveness.

Rather than making a ‘significant’ impact on libido, flibanserin only made sexual encounters ‘slightly’ more satisfying.

The aphrodisiac is also far from side-effect free. Problems with the range from the unfortunate, such as drowsiness, to the unpleasant, including depression, fainting and dizziness.