It's been a couple years since they entered the market.
Pills that could transform people into the opposite sex temporarily for one day. The catalyst for the transformation? Pleasure.
The Five Orgasm ProcessŪ, as it says in the box. The transformation has five progression stages and needs five orgasms to complete. Luckily for some the pills effect is so strong that they can't really -not- orgasm when taking it.
Quickly "Taking the 5OPill no orgasm challenge - Impossible" became a trend on the internet and shrinking men on cumstained gym pants became a common sight in Youtube, Instagram and other SFW platforms. And on the NSFW ones, well, you can imagine.
It was then that they found out the biggest side effects of the pills. Turns out that if you can, indeed, not orgasm when taking it, it has a steroid-like effect, just much more potent. The farther into the transformation, the lesser the effect, no effects if fully transformed. Some veteran bodybuilders seeing accelerated growth even after years of reaching their physiological weight cap. It's not a surprise the last year's competitive bodybuilding scene saw a fast and steep rise in practitioners of 5O-Blocking, as it became known.
Just as quickly videos of gymgoers caught on camera having 'pill-related accidents' started popping up as frequently as gym-fails. Because even for regular users of the pills it was hard to fight the arousing effects that could last well over 3h for some unlucky sensitive people.
With such a fast and world changing effect, the pill manufacturers, having marketed the pills for gender transitioning people, haven't yet been able to caught up with the alternative markets they encountered. But its just a matter of time before new and more specialized pills start flooding the market. Longterm side-effects have been rumored, but as of now, no conclusive studies have been published on the matter.