http://scpsandbox2.wikidot.com/jishwa Fourth tab, titled fix-up. I feel like it needs to be longer, but I don't know what to add.
Ok, so… there are probably some minor writing issues, the most visible of which is that "minor telepathy" is an incredibly lame and generic example of anomalous humanity. That might only be aggravating due to the lack of content in general.
The problem here is that you haven't really told us any particular story at all. The generic advice with these almost drawback-free and perfectly effective pills would be to give them some horrible side effects, or a terrible backstory, or something to that effect, but I'm not going to advise that. (Partially because to some extent that's been done, along with many cursed-wonder-drug SCPs, so it would take work to make it original.)
It's perfectly fine to tell us a happy story, but it still has to be a good story. This SCP barely tells a story at all. These things give people exactly what they desperately want. That's fine, but tell us about these people and their lives. Look how much emotion and effort goes into a reassignment in this tale. Your pills just do this.
This needs way more exploration and story. I don't know really how to do that, because this is currently pretty bare-bones, but it's gonna need way more emotional or narrative oomph than it has.