A spray developed by Irish researchers may help men delay ejaculation and extend the length of sexual encounters, according to a study published in the British Journal of Urology.

Men who used the spray, developed by researchers at the Royal Victoria Hospital in Belfast, five minutes before having intercourse extended their love-making from half a minute to almost four minutes, the study found.

The spray contains local anesthetics that numb the penis and could be available for use within the next couple of years, the BBC reports.

Researchers tested the spray, called PSD502, or a placebo on 300 men.

Those given the actual spray lasted 6.3 times longer on average. Men who tested the placebo spray lasted just 1.7 times longer.

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