This "male pill" works by preventing ejaculation without inhibiting orgasm. For some people that would eliminate a lot of the fun but for others it would be most welcome.

Also "useful" is that it can be taken as a "one of" a short time before its effects are needed and normal function returns a few hours later:

A male contraceptive pill, which can be taken as a one-off dose just before a date without any side effects, is being developed by British scientists.

The tablet would prevent a man from being able to impregnate a woman by creating a “dry orgasm”. But the user’s fertility would return to normal within a few hours of taking the drug.

The pill, which was derived from drugs used to treat schizophrenia, prevents ejaculation but does not affect the intensity of the orgasm.

Very interesting.