The process goes a little something like this: after scientists make their initial lab discovery, bio-tech partners create a compound to prove it won’t wreak havoc on the body’s other cells. A prototype is then made for human drug testing, which is a three-stage, ten-year process conducted under strict medical supervision. Only then, if nobody dies or grows an extra limb, can it be considered for commercial use. At this point, a marketing plan must be devised to ensure the end product doesn’t flop. And even then it’s a gamble, especially when - in the case of the male pill - it can only be used by half the population (rather than, say, statins which are good for all).